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157255304 = 231734001
BaseRepresentation
bin10010101111110…
…00011010001000
3101221220101201112
421113320122020
5310224132204
623334305452
73616435163
oct1127703210
9357811645
10157255304
1180848268
12447b8288
132676c39b
1416c56ada
15dc1426e
hex95f8688

157255304 has 32 divisors (see below), whose sum is σ = 313356600. Its totient is φ = 73984000.

The previous prime is 157255303. The next prime is 157255331. The reversal of 157255304 is 403552751.

It can be written as a sum of positive squares in 4 ways, for example, as 102050404 + 55204900 = 10102^2 + 7430^2 .

It is a super-2 number, since 2×1572553042 = 49458461272264832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157255303) 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 7 ways as a sum of consecutive naturals, for example, 37304 + ... + 41304.

Almost surely, 2157255304 is an apocalyptic number.

It is an amenable number.

157255304 is a deficient number, since it is larger than the sum of its proper divisors (156101296).

157255304 is an equidigital number, since it uses as much as digits as its factorization.

157255304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 157255304 is about 12540.1476865306. The cubic root of 157255304 is about 539.7613302848.

The spelling of 157255304 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, three hundred four".

Divisors: 1 2 4 8 17 34 68 136 289 578 1156 2312 4001 4913 8002 9826 16004 19652 32008 39304 68017 136034 272068 544136 1156289 2312578 4625156 9250312 19656913 39313826 78627652 157255304