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38906308 = 2271389511
BaseRepresentation
bin1001010001101…
…0100111000100
32201012122102101
42110122213010
534430000213
63505521444
7651461320
oct224324704
981178371
1038906308
111aa63981
1211043284
1380a2aac
14524a980
153637bdd
hex251a9c4

38906308 has 12 divisors (see below), whose sum is σ = 77812672. Its totient is φ = 16674120.

The previous prime is 38906303. The next prime is 38906321. The reversal of 38906308 is 80360983.

It is a happy number.

38906308 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38906303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694728 + ... + 694783.

Almost surely, 238906308 is an apocalyptic number.

It is an amenable number.

38906308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38906308 is a wasteful number, since it uses less digits than its factorization.

38906308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389522 (or 1389520 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 38906308 is about 6237.4921242435. The cubic root of 38906308 is about 338.8493629715.

The spelling of 38906308 in words is "thirty-eight million, nine hundred six thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 1389511 2779022 5558044 9726577 19453154 38906308