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157136180 = 22528032
BaseRepresentation
bin10010101110110…
…11010100110100
3101221200100022112
421113123110310
5310211324210
623331550152
73615430655
oct1127332464
9357610275
10157136180
1180776813
124475b358
132672a0b6
1416c2552c
15dbddd05
hex95db534

157136180 has 18 divisors (see below), whose sum is σ = 330103746. Its totient is φ = 62832048.

The previous prime is 157136159. The next prime is 157136197. The reversal of 157136180 is 81631751.

157136180 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 125708944 + 31427236 = 11212^2 + 5606^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54659 + ... + 57461.

It is an arithmetic number, because the mean of its divisors is an integer number (18339097).

Almost surely, 2157136180 is an apocalyptic number.

157136180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157136180 is an abundant number, since it is smaller than the sum of its proper divisors (172967566).

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

157136180 is an frugal number, since it uses more digits than its factorization.

157136180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 157136180 is about 12535.3970818638. The cubic root of 157136180 is about 539.6250025644.

The spelling of 157136180 in words is "one hundred fifty-seven million, one hundred thirty-six thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2803 5606 11212 14015 28030 56060 7856809 15713618 31427236 39284045 78568090 157136180