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157000901 = 593264757
BaseRepresentation
bin10010101101110…
…10010011000101
3101221102110202012
421112322103011
5310143012101
623325024005
73614325401
oct1126722305
9357373665
10157000901
1180694112
12446b5005
13266b0655
1416bcc101
15dbb3bbb
hex95ba4c5

157000901 has 4 divisors (see below), whose sum is σ = 157266252. Its totient is φ = 156735552.

The previous prime is 157000897. The next prime is 157000927. The reversal of 157000901 is 109000751.

157000901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 125302+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96550276 + 60450625 = 9826^2 + 7775^2 .

It is a cyclic number.

It is not a de Polignac number, because 157000901 - 22 = 157000897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157000981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131786 + ... + 132971.

It is an arithmetic number, because the mean of its divisors is an integer number (39316563).

Almost surely, 2157000901 is an apocalyptic number.

It is an amenable number.

157000901 is a deficient number, since it is larger than the sum of its proper divisors (265351).

157000901 is an equidigital number, since it uses as much as digits as its factorization.

157000901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265350.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 157000901 is about 12530.0000399042. Note that the first 4 decimals coincide. The cubic root of 157000901 is about 539.4701031870.

The spelling of 157000901 in words is "one hundred fifty-seven million, nine hundred one", and thus it is an aban number.

Divisors: 1 593 264757 157000901