Base | Representation |
---|---|
bin | 10110101111111… |
… | …110110000010000 |
3 | 222121012011210220 |
4 | 112233332300100 |
5 | 1240202122220 |
6 | 101512353040 |
7 | 12313124436 |
oct | 2657766020 |
9 | 877164726 |
10 | 381676560 |
11 | 1864a0281 |
12 | a79a5780 |
13 | 610c7325 |
14 | 38994d56 |
15 | 23794540 |
hex | 16bfec10 |
381676560 has 80 divisors (see below), whose sum is σ = 1245485760. Its totient is φ = 96422400.
The previous prime is 381676553. The next prime is 381676567. The reversal of 381676560 is 65676183.
It is an interprime number because it is at equal distance from previous prime (381676553) and next prime (381676567).
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (381676567) 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, 37291 + ... + 46410.
It is an arithmetic number, because the mean of its divisors is an integer number (15568572).
Almost surely, 2381676560 is an apocalyptic number.
381676560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
381676560 is an abundant number, since it is smaller than the sum of its proper divisors (863809200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
381676560 is a wasteful number, since it uses less digits than its factorization.
381676560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83736 (or 83730 counting only the distinct ones).
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 381676560 is about 19536.5442184640. The cubic root of 381676560 is about 725.3793084534.
The spelling of 381676560 in words is "three hundred eighty-one million, six hundred seventy-six thousand, five hundred sixty".
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