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380635908 = 22331719659
BaseRepresentation
bin10110101100000…
…000101100000100
3222112020022022020
4112230000230010
51234420322113
6101434203140
712301231452
oct2654005404
9875208266
10380635908
1118594a434
12a75834b0
1360b21763
14387a39d2
152363b023
hex16b00b04

380635908 has 12 divisors (see below), whose sum is σ = 888150480. Its totient is φ = 126878632.

The previous prime is 380635907. The next prime is 380635961. The reversal of 380635908 is 809536083.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 380635908.

It is not an unprimeable number, because it can be changed into a prime (380635903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15859818 + ... + 15859841.

It is an arithmetic number, because the mean of its divisors is an integer number (74012540).

Almost surely, 2380635908 is an apocalyptic number.

It is an amenable number.

380635908 is an abundant number, since it is smaller than the sum of its proper divisors (507514572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380635908 is a wasteful number, since it uses less digits than its factorization.

380635908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31719666 (or 31719664 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 380635908 is about 19509.8925676181. The cubic root of 380635908 is about 724.7194526102.

The spelling of 380635908 in words is "three hundred eighty million, six hundred thirty-five thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 31719659 63439318 95158977 126878636 190317954 380635908