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157253001 = 3237132099
BaseRepresentation
bin10010101111101…
…11110110001001
3101221220021120020
421113313312021
5310224044001
623334251053
73616425363
oct1127676611
9357807506
10157253001
1180846564
12447b6a89
132676b319
1416c55d33
15dc13736
hex95f7d89

157253001 has 16 divisors (see below), whose sum is σ = 221875200. Its totient is φ = 98861840.

The previous prime is 157252973. The next prime is 157253003. The reversal of 157253001 is 100352751.

It is a cyclic number.

It is not a de Polignac number, because 157253001 - 210 = 157251977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157253003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11151 + ... + 20948.

It is an arithmetic number, because the mean of its divisors is an integer number (13867200).

Almost surely, 2157253001 is an apocalyptic number.

It is an amenable number.

157253001 is a deficient number, since it is larger than the sum of its proper divisors (64622199).

157253001 is a wasteful number, since it uses less digits than its factorization.

157253001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32196.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 157253001 is about 12540.0558611196. The cubic root of 157253001 is about 539.7586953416.

The spelling of 157253001 in words is "one hundred fifty-seven million, two hundred fifty-three thousand, one".

Divisors: 1 3 23 69 71 213 1633 4899 32099 96297 738277 2214831 2279029 6837087 52417667 157253001