Base | Representation |
---|---|
bin | 101000011111111111… |
… | …0101100001100011000 |
3 | 22022111021120012020020 |
4 | 1100333332230030120 |
5 | 2411110010310342 |
6 | 103542115430440 |
7 | 6166160062455 |
oct | 1207776541430 |
9 | 268437505206 |
10 | 86972744472 |
11 | 33980935219 |
12 | 14a32bb5420 |
13 | 82808b7013 |
14 | 42d0c3c82c |
15 | 23e07020ec |
hex | 143ffac318 |
86972744472 has 64 divisors (see below), whose sum is σ = 222972134400. Its totient is φ = 28261390080.
The previous prime is 86972744389. The next prime is 86972744477. The reversal of 86972744472 is 27444727968.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (86972744477) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135088 + ... + 438399.
It is an arithmetic number, because the mean of its divisors is an integer number (3483939600).
Almost surely, 286972744472 is an apocalyptic number.
It is an amenable number.
86972744472 is an abundant number, since it is smaller than the sum of its proper divisors (135999389928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
86972744472 is a wasteful number, since it uses less digits than its factorization.
86972744472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 573656 (or 573652 counting only the distinct ones).
The product of its digits is 37933056, while the sum is 60.
The spelling of 86972744472 in words is "eighty-six billion, nine hundred seventy-two million, seven hundred forty-four thousand, four hundred seventy-two".
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