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380609808 = 2437929371
BaseRepresentation
bin10110101011111…
…010010100010000
3222112011222111120
4112223322110100
51234414003213
6101433442240
712301062405
oct2653722420
9875158446
10380609808
11185931867
12a7570380
1360b12907
14387982ac
1523633423
hex16afa510

380609808 has 20 divisors (see below), whose sum is σ = 983242128. Its totient is φ = 126869920.

The previous prime is 380609743. The next prime is 380609837. The reversal of 380609808 is 808906083.

It is a self number, because there is not a number n which added to its sum of digits gives 380609808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3964638 + ... + 3964733.

Almost surely, 2380609808 is an apocalyptic number.

It is an amenable number.

380609808 is an abundant number, since it is smaller than the sum of its proper divisors (602632320).

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

380609808 is a wasteful number, since it uses less digits than its factorization.

380609808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929382 (or 7929376 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 380609808 is about 19509.2236647182. The cubic root of 380609808 is about 724.7028876902.

The spelling of 380609808 in words is "three hundred eighty million, six hundred nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 7929371 15858742 23788113 31717484 47576226 63434968 95152452 126869936 190304904 380609808