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31468925 = 525092473
BaseRepresentation
bin111100000001…
…0110101111101
32012012210020202
41320002311331
531024001200
63042253245
7531324065
oct170026575
965183222
1031468925
1116844084
12a657225
13669a787
1442723a5
152b691d5
hex1e02d7d

31468925 has 12 divisors (see below), whose sum is σ = 39113940. Its totient is φ = 25115520.

The previous prime is 31468919. The next prime is 31468963. The reversal of 31468925 is 52986413.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 755161 + 30713764 = 869^2 + 5542^2 .

It is not a de Polignac number, because 31468925 - 26 = 31468861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11489 + ... + 13961.

It is an arithmetic number, because the mean of its divisors is an integer number (3259495).

Almost surely, 231468925 is an apocalyptic number.

It is an amenable number.

31468925 is a deficient number, since it is larger than the sum of its proper divisors (7645015).

31468925 is a wasteful number, since it uses less digits than its factorization.

31468925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992 (or 2987 counting only the distinct ones).

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

The square root of 31468925 is about 5609.7170160357. The cubic root of 31468925 is about 315.7140933992.

The spelling of 31468925 in words is "thirty-one million, four hundred sixty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 25 509 2473 2545 12365 12725 61825 1258757 6293785 31468925