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82974992 = 245185937
BaseRepresentation
bin1001111001000…
…01100100010000
312210010120021212
410330201210100
5132220144432
612122235252
72025163412
oct474414420
9183116255
1082974992
1142923381
1223955b28
1314262539
14b03c9b2
1574402b2
hex4f21910

82974992 has 10 divisors (see below), whose sum is σ = 160764078. Its totient is φ = 41487488.

The previous prime is 82974959. The next prime is 82975001. The reversal of 82974992 is 29947928.

It can be written as a sum of positive squares in only one way, i.e., 49056016 + 33918976 = 7004^2 + 5824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82974992.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592953 + ... + 2592984.

Almost surely, 282974992 is an apocalyptic number.

It is an amenable number.

82974992 is a deficient number, since it is larger than the sum of its proper divisors (77789086).

82974992 is a wasteful number, since it uses less digits than its factorization.

82974992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185945 (or 5185939 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 82974992 is about 9109.0609834384. The cubic root of 82974992 is about 436.1632528398.

The spelling of 82974992 in words is "eighty-two million, nine hundred seventy-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 5185937 10371874 20743748 41487496 82974992