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3900925 = 52722291
BaseRepresentation
bin1110111000010111111101
321100012001201
432320113331
51444312200
6215335501
745104650
oct16702775
97305051
103900925
112224906
121381591
13a67752
14737897
15520c6a
hex3b85fd

3900925 has 12 divisors (see below), whose sum is σ = 5528416. Its totient is φ = 2674800.

The previous prime is 3900907. The next prime is 3900929. The reversal of 3900925 is 5290093.

It is not a de Polignac number, because 3900925 - 25 = 3900893 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3900893 and 3900902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900929) 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, 10971 + ... + 11320.

Almost surely, 23900925 is an apocalyptic number.

3900925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3900925 is a deficient number, since it is larger than the sum of its proper divisors (1627491).

3900925 is a wasteful number, since it uses less digits than its factorization.

3900925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22308 (or 22303 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 3900925 is about 1975.0759479068. The cubic root of 3900925 is about 157.4185351781.

The spelling of 3900925 in words is "three million, nine hundred thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 22291 111455 156037 557275 780185 3900925