Base | Representation |
---|---|
bin | 110100000001111… |
… | …010000100101000 |
3 | 2020211112200121002 |
4 | 310001322010220 |
5 | 3241431241430 |
6 | 222341334132 |
7 | 30426441251 |
oct | 6401720450 |
9 | 2224480532 |
10 | 872915240 |
11 | 40881315a |
12 | 204407348 |
13 | 10bb025c2 |
14 | 83d09b28 |
15 | 5197b845 |
hex | 3407a128 |
872915240 has 32 divisors (see below), whose sum is σ = 1988928000. Its totient is φ = 344745024.
The previous prime is 872915237. The next prime is 872915249. The reversal of 872915240 is 42519278.
It is a junction number, because it is equal to n+sod(n) for n = 872915194 and 872915203.
It is not an unprimeable number, because it can be changed into a prime (872915249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134960 + ... + 141279.
It is an arithmetic number, because the mean of its divisors is an integer number (62154000).
Almost surely, 2872915240 is an apocalyptic number.
It is an amenable number.
872915240 is an abundant number, since it is smaller than the sum of its proper divisors (1116012760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
872915240 is a wasteful number, since it uses less digits than its factorization.
872915240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 276329 (or 276325 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 38.
The square root of 872915240 is about 29545.1390248887. The cubic root of 872915240 is about 955.7053677937.
The spelling of 872915240 in words is "eight hundred seventy-two million, nine hundred fifteen thousand, two hundred forty".
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