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38679425 = 521547177
BaseRepresentation
bin1001001110001…
…1001110000001
32200210010012022
42103203032001
534400220200
63501011225
7646525001
oct223431601
980703168
1038679425
111a919474
1210b53b15
138023745
1451cc001
1535e0885
hex24e3381

38679425 has 6 divisors (see below), whose sum is σ = 47962518. Its totient is φ = 30943520.

The previous prime is 38679373. The next prime is 38679439. The reversal of 38679425 is 52497683.

It can be written as a sum of positive squares in 3 ways, for example, as 6235009 + 32444416 = 2497^2 + 5696^2 .

It is a de Polignac number, because none of the positive numbers 2k-38679425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 773564 + ... + 773613.

It is an arithmetic number, because the mean of its divisors is an integer number (7993753).

Almost surely, 238679425 is an apocalyptic number.

It is an amenable number.

38679425 is a deficient number, since it is larger than the sum of its proper divisors (9283093).

38679425 is a wasteful number, since it uses less digits than its factorization.

38679425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547187 (or 1547182 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 38679425 is about 6219.2784951311. The cubic root of 38679425 is about 338.1894092617.

The spelling of 38679425 in words is "thirty-eight million, six hundred seventy-nine thousand, four hundred twenty-five".

Divisors: 1 5 25 1547177 7735885 38679425