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7925013 = 33417159
BaseRepresentation
bin11110001110110100010101
3112220122002000
4132032310111
54012100023
6441505513
7124234665
oct36166425
915818060
107925013
1145231a8
1227a2299
131846275
1410a41a5
15a68243
hex78ed15

7925013 has 16 divisors (see below), whose sum is σ = 12028800. Its totient is φ = 5153760.

The previous prime is 7924991. The next prime is 7925017. The reversal of 7925013 is 3105297.

It is not a de Polignac number, because 7925013 - 25 = 7924981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7925017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2473 + ... + 4686.

It is an arithmetic number, because the mean of its divisors is an integer number (751800).

Almost surely, 27925013 is an apocalyptic number.

It is an amenable number.

7925013 is a deficient number, since it is larger than the sum of its proper divisors (4103787).

7925013 is a wasteful number, since it uses less digits than its factorization.

7925013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209 (or 7203 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 7925013 is about 2815.1399609966. The cubic root of 7925013 is about 199.3731456541.

The spelling of 7925013 in words is "seven million, nine hundred twenty-five thousand, thirteen".

Divisors: 1 3 9 27 41 123 369 1107 7159 21477 64431 193293 293519 880557 2641671 7925013