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1313131189248 = 210321311087663
BaseRepresentation
bin10011000110111100101…
…101111101010000000000
311122112102100222222111200
4103012330231331100000
5133003243041023443
62443124422341200
7163604420642064
oct23067455752000
94575370888450
101313131189248
1146699436100a
121925b0b8a800
1396a9b70ccc8
14477ad503aa4
1524256b3cdd3
hex131bcb7d400

1313131189248 has 132 divisors (see below), whose sum is σ = 3820585124928. Its totient is φ = 434368696320.

The previous prime is 1313131189243. The next prime is 1313131189289. The reversal of 1313131189248 is 8429811313131.

1313131189248 is a `hidden beast` number, since 1 + 3 + 1 + 313 + 11 + 89 + 248 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313131189243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 663465 + ... + 1751127.

It is an arithmetic number, because the mean of its divisors is an integer number (28943826704).

Almost surely, 21313131189248 is an apocalyptic number.

1313131189248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313131189248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910292562464).

1313131189248 is an abundant number, since it is smaller than the sum of its proper divisors (2507453935680).

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

1313131189248 is a wasteful number, since it uses less digits than its factorization.

1313131189248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087820 (or 1087799 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The spelling of 1313131189248 in words is "one trillion, three hundred thirteen billion, one hundred thirty-one million, one hundred eighty-nine thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 131 144 192 256 262 288 384 393 512 524 576 768 786 1024 1048 1152 1179 1536 1572 2096 2304 2358 3072 3144 4192 4608 4716 6288 8384 9216 9432 12576 16768 18864 25152 33536 37728 50304 67072 75456 100608 134144 150912 201216 301824 402432 603648 1087663 1207296 2175326 3262989 4350652 6525978 8701304 9788967 13051956 17402608 19577934 26103912 34805216 39155868 52207824 69610432 78311736 104415648 139220864 142483853 156623472 208831296 278441728 284967706 313246944 417662592 427451559 556883456 569935412 626493888 835325184 854903118 1113766912 1139870824 1252987776 1282354677 1670650368 1709806236 2279741648 2505975552 2564709354 3341300736 3419612472 4559483296 5011951104 5129418708 6839224944 9118966592 10023902208 10258837416 13678449888 18237933184 20517674832 27356899776 36475866368 41035349664 54713799552 72951732736 82070699328 109427599104 145903465472 164141398656 218855198208 328282797312 437710396416 656565594624 1313131189248