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38641925 = 527220811
BaseRepresentation
bin1001001101101…
…0000100000101
32200201012202102
42103122010011
534343020200
63500121445
7646310450
oct223320405
980635672
1038641925
111a8a3283
1210b36285
13800c65a
1451bc497
1535d46d5
hex24da105

38641925 has 12 divisors (see below), whose sum is σ = 54761376. Its totient is φ = 26497200.

The previous prime is 38641919. The next prime is 38641927. The reversal of 38641925 is 52914683.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-38641925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38641927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110231 + ... + 110580.

It is an arithmetic number, because the mean of its divisors is an integer number (4563448).

Almost surely, 238641925 is an apocalyptic number.

38641925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38641925 is a deficient number, since it is larger than the sum of its proper divisors (16119451).

38641925 is a wasteful number, since it uses less digits than its factorization.

38641925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220828 (or 220823 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 38641925 is about 6216.2629448890. The cubic root of 38641925 is about 338.0800815117.

The spelling of 38641925 in words is "thirty-eight million, six hundred forty-one thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 220811 1104055 1545677 5520275 7728385 38641925