Base | Representation |
---|---|
bin | 110100000001111… |
… | …010000100100111 |
3 | 2020211112200121001 |
4 | 310001322010213 |
5 | 3241431241424 |
6 | 222341334131 |
7 | 30426441250 |
oct | 6401720447 |
9 | 2224480531 |
10 | 872915239 |
11 | 408813159 |
12 | 204407347 |
13 | 10bb025c1 |
14 | 83d09b27 |
15 | 5197b844 |
hex | 3407a127 |
872915239 has 12 divisors (see below), whose sum is σ = 1012057744. Its totient is φ = 737398944.
The previous prime is 872915237. The next prime is 872915249. The reversal of 872915239 is 932519278.
It is not a de Polignac number, because 872915239 - 21 = 872915237 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 (872915231) 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 11 ways as a sum of consecutive naturals, for example, 667224 + ... + 668530.
Almost surely, 2872915239 is an apocalyptic number.
872915239 is a deficient number, since it is larger than the sum of its proper divisors (139142505).
872915239 is an frugal number, since it uses more digits than its factorization.
With its predecessor (872915238) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (2694).
872915239 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2694 (or 1387 counting only the distinct ones).
The product of its digits is 272160, while the sum is 46.
The square root of 872915239 is about 29545.1390079654. The cubic root of 872915239 is about 955.7053674288.
The spelling of 872915239 in words is "eight hundred seventy-two million, nine hundred fifteen thousand, two hundred thirty-nine".
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