Base | Representation |
---|---|
bin | 101000100010111… |
… | …011010100010010 |
3 | 1202102000000000200 |
4 | 220202323110102 |
5 | 2343120310443 |
6 | 151300000030 |
7 | 22566661053 |
oct | 5042732422 |
9 | 1672000020 |
10 | 680244498 |
11 | 319a8683a |
12 | 16b990016 |
13 | aac1334b |
14 | 664b472a |
15 | 3eabddd3 |
hex | 288bb512 |
680244498 has 24 divisors (see below), whose sum is σ = 1551435600. Its totient is φ = 214813944.
The previous prime is 680244497. The next prime is 680244541. The reversal of 680244498 is 894442086.
It is not an unprimeable number, because it can be changed into a prime (680244497) 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, 994168 + ... + 994851.
It is an arithmetic number, because the mean of its divisors is an integer number (64643150).
Almost surely, 2680244498 is an apocalyptic number.
680244498 is an abundant number, since it is smaller than the sum of its proper divisors (871191102).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680244498 is a wasteful number, since it uses less digits than its factorization.
680244498 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1989046 (or 1989043 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 45.
The square root of 680244498 is about 26081.4972346298. The cubic root of 680244498 is about 879.4713155340.
The spelling of 680244498 in words is "six hundred eighty million, two hundred forty-four thousand, four hundred ninety-eight".
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