Search a number
-
+
7972892 = 224742409
BaseRepresentation
bin11110011010100000011100
3120000001202022
4132122200130
54020113032
6442515312
7124524404
oct36324034
916001668
107972892
114556174
122805b38
131861cb5
1410b7804
15a77512
hex79a81c

7972892 has 12 divisors (see below), whose sum is σ = 14249760. Its totient is φ = 3901536.

The previous prime is 7972889. The next prime is 7972903. The reversal of 7972892 is 2982797.

It is a congruent number.

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, 21017 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (1187480).

Almost surely, 27972892 is an apocalyptic number.

It is an amenable number.

7972892 is a deficient number, since it is larger than the sum of its proper divisors (6276868).

7972892 is a wasteful number, since it uses less digits than its factorization.

7972892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42460 (or 42458 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 7972892 is about 2823.6309957216. The cubic root of 7972892 is about 199.7738443645.

The spelling of 7972892 in words is "seven million, nine hundred seventy-two thousand, eight hundred ninety-two".

Divisors: 1 2 4 47 94 188 42409 84818 169636 1993223 3986446 7972892