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131089392 = 24327472767
BaseRepresentation
bin1111101000001…
…00001111110000
3100010200000211200
413310010033300
5232024330032
621001411200
73151145550
oct764041760
9303600750
10131089392
1167aa6445
1237a99b00
132120a5b5
14135a5160
15b79647c
hex7d043f0

131089392 has 120 divisors (see below), whose sum is σ = 428353536. Its totient is φ = 36643968.

The previous prime is 131089391. The next prime is 131089411. The reversal of 131089392 is 293980131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131089391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45993 + ... + 48759.

Almost surely, 2131089392 is an apocalyptic number.

131089392 is a gapful number since it is divisible by the number (12) 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 131089392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214176768).

131089392 is an abundant number, since it is smaller than the sum of its proper divisors (297264144).

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

131089392 is a wasteful number, since it uses less digits than its factorization.

131089392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 131089392 is about 11449.4275839450. The cubic root of 131089392 is about 507.9908031484.

It can be divided in two parts, 13108 and 9392, that added together give a square (22500 = 1502).

The spelling of 131089392 in words is "one hundred thirty-one million, eighty-nine thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 47 48 56 63 72 84 94 112 126 141 144 168 188 252 282 329 336 376 423 504 564 658 752 846 987 1008 1128 1316 1692 1974 2256 2632 2767 2961 3384 3948 5264 5534 5922 6768 7896 8301 11068 11844 15792 16602 19369 22136 23688 24903 33204 38738 44272 47376 49806 58107 66408 77476 99612 116214 130049 132816 154952 174321 199224 232428 260098 309904 348642 390147 398448 464856 520196 697284 780294 910343 929712 1040392 1170441 1394568 1560588 1820686 2080784 2340882 2731029 2789136 3121176 3641372 4681764 5462058 6242352 7282744 8193087 9363528 10924116 14565488 16386174 18727056 21848232 32772348 43696464 65544696 131089392