Base | Representation |
---|---|
bin | 101000100010110… |
… | …000110000101000 |
3 | 1202101220210201010 |
4 | 220202300300220 |
5 | 2343112420011 |
6 | 151255023520 |
7 | 22566421020 |
oct | 5042606050 |
9 | 1671823633 |
10 | 680201256 |
11 | 319a572a9 |
12 | 16b96aba0 |
13 | aabc9767 |
14 | 664a2a80 |
15 | 3eab11a6 |
hex | 288b0c28 |
680201256 has 128 divisors (see below), whose sum is σ = 2023464960. Its totient is φ = 186451200.
The previous prime is 680201251. The next prime is 680201257. The reversal of 680201256 is 652102086.
It is not an unprimeable number, because it can be changed into a prime (680201251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681750 + ... + 682746.
It is an arithmetic number, because the mean of its divisors is an integer number (15808320).
Almost surely, 2680201256 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 680201256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011732480).
680201256 is an abundant number, since it is smaller than the sum of its proper divisors (1343263704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680201256 is a wasteful number, since it uses less digits than its factorization.
680201256 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1175 (or 1171 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 680201256 is about 26080.6682429726. The cubic root of 680201256 is about 879.4526796344.
The spelling of 680201256 in words is "six hundred eighty million, two hundred one thousand, two hundred fifty-six".
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