Base | Representation |
---|---|
bin | 10110101001100… |
… | …110001010100100 |
3 | 222111001011002110 |
4 | 112221212022210 |
5 | 1234240043410 |
6 | 101412441020 |
7 | 12262654260 |
oct | 2651461244 |
9 | 874034073 |
10 | 380002980 |
11 | 185557955 |
12 | a7319170 |
13 | 6095c646 |
14 | 3867b0a0 |
15 | 23563720 |
hex | 16a662a4 |
380002980 has 48 divisors (see below), whose sum is σ = 1216010880. Its totient is φ = 86857728.
The previous prime is 380002969. The next prime is 380002993. The reversal of 380002980 is 89200083.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 451965 + ... + 452804.
It is an arithmetic number, because the mean of its divisors is an integer number (25333560).
Almost surely, 2380002980 is an apocalyptic number.
380002980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
380002980 is an abundant number, since it is smaller than the sum of its proper divisors (836007900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380002980 is a wasteful number, since it uses less digits than its factorization.
380002980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 904788 (or 904786 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 380002980 is about 19493.6651248553. The cubic root of 380002980 is about 724.3175377257.
The spelling of 380002980 in words is "three hundred eighty million, two thousand, nine hundred eighty".
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