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157050985 = 57131811907
BaseRepresentation
bin10010101110001…
…10100001101001
3101221112000110011
421113012201221
5310201112420
623330051521
73614624410
oct1127064151
9357460404
10157050985
1180718803
1244719ba1
13266ca3a0
1416c02477
15dbc395a
hex95c6869

157050985 has 32 divisors (see below), whose sum is σ = 233356032. Its totient is φ = 98807040.

The previous prime is 157050983. The next prime is 157050997. The reversal of 157050985 is 589050751.

It is not a de Polignac number, because 157050985 - 21 = 157050983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157050983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81402 + ... + 83308.

It is an arithmetic number, because the mean of its divisors is an integer number (7292376).

Almost surely, 2157050985 is an apocalyptic number.

It is an amenable number.

157050985 is a deficient number, since it is larger than the sum of its proper divisors (76305047).

157050985 is a wasteful number, since it uses less digits than its factorization.

157050985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 157050985 is about 12531.9984439833. The cubic root of 157050985 is about 539.5274615587.

The spelling of 157050985 in words is "one hundred fifty-seven million, fifty thousand, nine hundred eighty-five".

Divisors: 1 5 7 13 35 65 91 181 455 905 1267 1907 2353 6335 9535 11765 13349 16471 24791 66745 82355 123955 173537 345167 867685 1725835 2416169 4487171 12080845 22435855 31410197 157050985