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157039157 = 11120111887
BaseRepresentation
bin10010101110000…
…11101000110101
3101221111102020002
421113003220311
5310200223112
623325521045
73614545052
oct1127035065
9357442202
10157039157
118070a930
1244713185
13266c4ba2
1416bdc029
15dbc01c2
hex95c3a35

157039157 has 8 divisors (see below), whose sum is σ = 171472512. Its totient is φ = 142632000.

The previous prime is 157039153. The next prime is 157039163. The reversal of 157039157 is 751930751.

157039157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157039157 - 22 = 157039153 is a prime.

It is a super-2 number, since 2×1570391572 = 49322593662541298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157039157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157039153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7268 + ... + 19154.

It is an arithmetic number, because the mean of its divisors is an integer number (21434064).

Almost surely, 2157039157 is an apocalyptic number.

It is an amenable number.

157039157 is a deficient number, since it is larger than the sum of its proper divisors (14433355).

157039157 is a wasteful number, since it uses less digits than its factorization.

157039157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13099.

The product of its (nonzero) digits is 33075, while the sum is 38.

The square root of 157039157 is about 12531.5265231336. The cubic root of 157039157 is about 539.5139167195.

The spelling of 157039157 in words is "one hundred fifty-seven million, thirty-nine thousand, one hundred fifty-seven".

Divisors: 1 11 1201 11887 13211 130757 14276287 157039157