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157357460 = 22513605221
BaseRepresentation
bin10010110000100…
…01010110010100
3101222002120212002
421120101112110
5310240414320
623340414432
73620342051
oct1130212624
9358076762
10157357460
1180907a97
1244847418
13267a6a30
1416c82028
15dc34675
hex9611594

157357460 has 24 divisors (see below), whose sum is σ = 355870536. Its totient is φ = 58101120.

The previous prime is 157357441. The next prime is 157357463. The reversal of 157357460 is 64753751.

It can be written as a sum of positive squares in 4 ways, for example, as 21215236 + 136142224 = 4606^2 + 11668^2 .

It is a super-2 number, since 2×1573574602 = 49522740435303200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157357463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302351 + ... + 302870.

It is an arithmetic number, because the mean of its divisors is an integer number (14827939).

Almost surely, 2157357460 is an apocalyptic number.

157357460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157357460 is an abundant number, since it is smaller than the sum of its proper divisors (198513076).

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

157357460 is a wasteful number, since it uses less digits than its factorization.

157357460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605243 (or 605241 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 157357460 is about 12544.2201830166. The cubic root of 157357460 is about 539.8781846853.

The spelling of 157357460 in words is "one hundred fifty-seven million, three hundred fifty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 605221 1210442 2420884 3026105 6052210 7867873 12104420 15735746 31471492 39339365 78678730 157357460