Base | Representation |
---|---|
bin | 10010101101111… |
… | …01001110010111 |
3 | 101221110002012010 |
4 | 21112331032113 |
5 | 310143403022 |
6 | 23325155303 |
7 | 3614405343 |
oct | 1126751627 |
9 | 357402163 |
10 | 157012887 |
11 | 806a2119 |
12 | 446bbb33 |
13 | 266b5c45 |
14 | 16bd2623 |
15 | dbb750c |
hex | 95bd397 |
157012887 has 8 divisors (see below), whose sum is σ = 210447360. Its totient is φ = 104126840.
The previous prime is 157012859. The next prime is 157012913. The reversal of 157012887 is 788210751.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 157012887 - 28 = 157012631 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157012837) 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 7 ways as a sum of consecutive naturals, for example, 136437 + ... + 137582.
It is an arithmetic number, because the mean of its divisors is an integer number (26305920).
Almost surely, 2157012887 is an apocalyptic number.
157012887 is a deficient number, since it is larger than the sum of its proper divisors (53434473).
157012887 is a wasteful number, since it uses less digits than its factorization.
157012887 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 274213.
The product of its (nonzero) digits is 31360, while the sum is 39.
The square root of 157012887 is about 12530.4783228734. The cubic root of 157012887 is about 539.4838311849.
The spelling of 157012887 in words is "one hundred fifty-seven million, twelve thousand, eight hundred eighty-seven".
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