Base | Representation |
---|---|
bin | 101000100001001… |
… | …110111000111100 |
3 | 1202101011102210212 |
4 | 220201032320330 |
5 | 2343012103010 |
6 | 151242251552 |
7 | 22563131210 |
oct | 5041167074 |
9 | 1671142725 |
10 | 679800380 |
11 | 3198030a6 |
12 | 16b7b6bb8 |
13 | aaab915c |
14 | 663da940 |
15 | 3ea32505 |
hex | 2884ee3c |
679800380 has 24 divisors (see below), whose sum is σ = 1631521248. Its totient is φ = 233074368.
The previous prime is 679800361. The next prime is 679800389. The reversal of 679800380 is 83008976.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (679800389) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2427719 + ... + 2427998.
It is an arithmetic number, because the mean of its divisors is an integer number (67980052).
Almost surely, 2679800380 is an apocalyptic number.
It is an amenable number.
679800380 is an abundant number, since it is smaller than the sum of its proper divisors (951720868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
679800380 is a wasteful number, since it uses less digits than its factorization.
679800380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4855733 (or 4855731 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 41.
The square root of 679800380 is about 26072.9818010906. The cubic root of 679800380 is about 879.2798774671.
The spelling of 679800380 in words is "six hundred seventy-nine million, eight hundred thousand, three hundred eighty".
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