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157512712 = 2376741981
BaseRepresentation
bin10010110001101…
…11010000001000
3101222101110211011
421120313100020
5310310401322
623344013304
73621556510
oct1130672010
9358343734
10157512712
1180a036a5
1244901234
132682c5b6
1416cc2840
15dc65677
hex9637408

157512712 has 32 divisors (see below), whose sum is σ = 342573120. Its totient is φ = 66496320.

The previous prime is 157512709. The next prime is 157512727. The reversal of 157512712 is 217215751.

It is an unprimeable number.

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, 17239 + ... + 24742.

It is an arithmetic number, because the mean of its divisors is an integer number (10705410).

Almost surely, 2157512712 is an apocalyptic number.

It is an amenable number.

157512712 is an abundant number, since it is smaller than the sum of its proper divisors (185060408).

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

157512712 is a wasteful number, since it uses less digits than its factorization.

157512712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42061 (or 42057 counting only the distinct ones).

The product of its digits is 4900, while the sum is 31.

The square root of 157512712 is about 12550.4068459951. The cubic root of 157512712 is about 540.0556778438.

The spelling of 157512712 in words is "one hundred fifty-seven million, five hundred twelve thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 67 134 268 469 536 938 1876 3752 41981 83962 167924 293867 335848 587734 1175468 2350936 2812727 5625454 11250908 19689089 22501816 39378178 78756356 157512712