Search a number
-
+
7925928 = 233330247
BaseRepresentation
bin11110001111000010101000
3112220200022220
4132033002220
54012112203
6441514040
7124240443
oct36170250
915820286
107925928
11452395a
1227a2920
1318467ca
1410a465a
15a68653
hex78f0a8

7925928 has 16 divisors (see below), whose sum is σ = 19814880. Its totient is φ = 2641968.

The previous prime is 7925917. The next prime is 7925959. The reversal of 7925928 is 8295297.

It is a super-2 number, since 2×79259282 = 125640669322368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7925928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165100 + ... + 165147.

It is an arithmetic number, because the mean of its divisors is an integer number (1238430).

Almost surely, 27925928 is an apocalyptic number.

It is an amenable number.

7925928 is an abundant number, since it is smaller than the sum of its proper divisors (11888952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7925928 is a wasteful number, since it uses less digits than its factorization.

7925928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330256 (or 330252 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 7925928 is about 2815.3024704284. The cubic root of 7925928 is about 199.3808183822.

The spelling of 7925928 in words is "seven million, nine hundred twenty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 330247 660494 990741 1320988 1981482 2641976 3962964 7925928