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3120925 = 52314027
BaseRepresentation
bin1011111001111100011101
312212120002211
423321330131
51244332200
6150520421
735345623
oct13717435
95776084
103120925
111841885
121066111
13853702
145b3513
15419aba
hex2f9f1d

3120925 has 12 divisors (see below), whose sum is σ = 3995776. Its totient is φ = 2415600.

The previous prime is 3120919. The next prime is 3120937. The reversal of 3120925 is 5290213.

It is not a de Polignac number, because 3120925 - 29 = 3120413 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3120896 and 3120905.

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, 1239 + ... + 2788.

Almost surely, 23120925 is an apocalyptic number.

It is an amenable number.

3120925 is a deficient number, since it is larger than the sum of its proper divisors (874851).

3120925 is a wasteful number, since it uses less digits than its factorization.

3120925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3120925 is about 1766.6139929254. The cubic root of 3120925 is about 146.1373106160.

The spelling of 3120925 in words is "three million, one hundred twenty thousand, nine hundred twenty-five".

Divisors: 1 5 25 31 155 775 4027 20135 100675 124837 624185 3120925