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157485312 = 2832292357
BaseRepresentation
bin10010110001100…
…00100100000000
3101222100002020100
421120300210000
5310304012222
623343242400
73621413565
oct1130604400
9358302210
10157485312
1180995056
12448a9400
132681cc9a
1416cb686c
15dc5c4ac
hex9630900

157485312 has 108 divisors (see below), whose sum is σ = 469925820. Its totient is φ = 50663424.

The previous prime is 157485311. The next prime is 157485323. The reversal of 157485312 is 213584751.

157485312 is a `hidden beast` number, since 1 + 574 + 85 + 3 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53934336 + 103550976 = 7344^2 + 10176^2 .

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 (157485311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65638 + ... + 67994.

It is an arithmetic number, because the mean of its divisors is an integer number (4351165).

Almost surely, 2157485312 is an apocalyptic number.

157485312 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 157485312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234962910).

157485312 is an abundant number, since it is smaller than the sum of its proper divisors (312440508).

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

157485312 is a wasteful number, since it uses less digits than its factorization.

157485312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2391 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 157485312 is about 12549.3152004402. The cubic root of 157485312 is about 540.0243610409.

The spelling of 157485312 in words is "one hundred fifty-seven million, four hundred eighty-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 64 72 87 96 116 128 144 174 192 232 256 261 288 348 384 464 522 576 696 768 928 1044 1152 1392 1856 2088 2304 2357 2784 3712 4176 4714 5568 7071 7424 8352 9428 11136 14142 16704 18856 21213 22272 28284 33408 37712 42426 56568 66816 68353 75424 84852 113136 136706 150848 169704 205059 226272 273412 301696 339408 410118 452544 546824 603392 615177 678816 820236 905088 1093648 1230354 1357632 1640472 1810176 2187296 2460708 2715264 3280944 4374592 4921416 5430528 6561888 8749184 9842832 13123776 17498368 19685664 26247552 39371328 52495104 78742656 157485312