Base | Representation |
---|---|
bin | 10110101101000… |
… | …101000100000101 |
3 | 222112202112111000 |
4 | 112231011010011 |
5 | 1240003302343 |
6 | 101444203513 |
7 | 12303506124 |
oct | 2655050405 |
9 | 875675430 |
10 | 380915973 |
11 | 186020899 |
12 | a7699599 |
13 | 60bbc089 |
14 | 38837abb |
15 | 23693ed3 |
hex | 16b45105 |
380915973 has 16 divisors (see below), whose sum is σ = 577445440. Its totient is φ = 248037552.
The previous prime is 380915963. The next prime is 380915987. The reversal of 380915973 is 379519083.
It is a happy number.
It is not a de Polignac number, because 380915973 - 213 = 380907781 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380915963) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162886 + ... + 165207.
It is an arithmetic number, because the mean of its divisors is an integer number (36090340).
Almost surely, 2380915973 is an apocalyptic number.
It is an amenable number.
380915973 is a deficient number, since it is larger than the sum of its proper divisors (196529467).
380915973 is a wasteful number, since it uses less digits than its factorization.
380915973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 328145 (or 328139 counting only the distinct ones).
The product of its (nonzero) digits is 204120, while the sum is 45.
The square root of 380915973 is about 19517.0687604466. The cubic root of 380915973 is about 724.8971541787.
The spelling of 380915973 in words is "three hundred eighty million, nine hundred fifteen thousand, nine hundred seventy-three".
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