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157004357 = 374243361
BaseRepresentation
bin10010101101110…
…11001001000101
3101221102122111012
421112323021011
5310143114412
623325052005
73614341436
oct1126731105
9357378435
10157004357
1180696774
12446b7005
13266b20b3
1416bcd48d
15dbb4c22
hex95bb245

157004357 has 4 divisors (see below), whose sum is σ = 161247756. Its totient is φ = 152760960.

The previous prime is 157004327. The next prime is 157004381. The reversal of 157004357 is 753400751.

157004357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 82337476 + 74666881 = 9074^2 + 8641^2 .

It is a cyclic number.

It is not a de Polignac number, because 157004357 - 210 = 157003333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157004317) 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, 2121644 + ... + 2121717.

It is an arithmetic number, because the mean of its divisors is an integer number (40311939).

Almost surely, 2157004357 is an apocalyptic number.

It is an amenable number.

157004357 is a deficient number, since it is larger than the sum of its proper divisors (4243399).

157004357 is an equidigital number, since it uses as much as digits as its factorization.

157004357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243398.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 157004357 is about 12530.1379481632. The cubic root of 157004357 is about 539.4740615400.

The spelling of 157004357 in words is "one hundred fifty-seven million, four thousand, three hundred fifty-seven".

Divisors: 1 37 4243361 157004357