Base | Representation |
---|---|
bin | 101000100010000… |
… | …111010011110000 |
3 | 1202101121011210211 |
4 | 220202013103300 |
5 | 2343042001342 |
6 | 151251233504 |
7 | 22565113021 |
oct | 5042072360 |
9 | 1671534724 |
10 | 680031472 |
11 | 31995078a |
12 | 16b8a8894 |
13 | aab6a3b3 |
14 | 6645ac48 |
15 | 3ea7ac17 |
hex | 288874f0 |
680031472 has 20 divisors (see below), whose sum is σ = 1318442400. Its totient is φ = 339788288.
The previous prime is 680031449. The next prime is 680031479. The reversal of 680031472 is 274130086.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (680031479) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11904 + ... + 38752.
It is an arithmetic number, because the mean of its divisors is an integer number (65922120).
Almost surely, 2680031472 is an apocalyptic number.
It is an amenable number.
680031472 is a deficient number, since it is larger than the sum of its proper divisors (638410928).
680031472 is a wasteful number, since it uses less digits than its factorization.
680031472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28440 (or 28434 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 680031472 is about 26077.4130618817. The cubic root of 680031472 is about 879.3795005972.
The spelling of 680031472 in words is "six hundred eighty million, thirty-one thousand, four hundred seventy-two".
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