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131252451791344 = 24132411279925649
BaseRepresentation
bin11101110101111110010111…
…110000111101000111110000
3122012201121112001000110210221
4131311332113300331013300
5114200420010124310334
61143052313254302424
736434451053242132
oct3565762760750760
9565647461013727
10131252451791344
1138903941323504
1212879730657a14
13583108c860100
14245a91c8b9052
15102929ded08b4
hex775f97c3d1f0

131252451791344 has 120 divisors (see below), whose sum is σ = 282305181312000. Its totient is φ = 59054268948480.

The previous prime is 131252451791281. The next prime is 131252451791359. The reversal of 131252451791344 is 443197154252131.

It is a super-3 number, since 3×1312524517913443 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 131252451791291 and 131252451791300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141332232 + ... + 142257880.

It is an arithmetic number, because the mean of its divisors is an integer number (2352543177600).

Almost surely, 2131252451791344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131252451791344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141152590656000).

131252451791344 is an abundant number, since it is smaller than the sum of its proper divisors (151052729520656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131252451791344 is a wasteful number, since it uses less digits than its factorization.

131252451791344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927003 (or 926984 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The spelling of 131252451791344 in words is "one hundred thirty-one trillion, two hundred fifty-two billion, four hundred fifty-one million, seven hundred ninety-one thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 16 26 41 52 82 104 164 169 208 328 338 533 656 676 1066 1279 1352 2132 2558 2704 4264 5116 6929 8528 10232 13858 16627 20464 27716 33254 52439 55432 66508 104878 110864 133016 209756 216151 266032 419512 432302 681707 839024 864604 925649 1363414 1729208 1851298 2726828 3458416 3702596 5453656 7405192 8862191 10907312 12033437 14810384 17724382 24066874 35448764 37951609 48133748 70897528 75903218 96267496 141795056 151806436 156434681 192534992 303612872 312869362 493370917 607225744 625738724 986741834 1183905071 1251477448 1973483668 2367810142 2502954896 3946967336 4735620284 6413821921 7893934672 9471240568 12827643842 15390765923 18942481136 25655287684 30781531846 48540107911 51310575368 61563063692 97080215822 102621150736 123126127384 194160431644 200079956999 246252254768 388320863288 400159913998 631021402843 776641726576 800319827996 1262042805686 1600639655992 2524085611372 3201279311984 5048171222744 8203278236959 10096342445488 16406556473918 32813112947836 65626225895672 131252451791344