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672641976 = 23328026749
BaseRepresentation
bin101000000101111…
…011001110111000
31201212200202022210
4220011323032320
52334144020401
6150425015120
722445235216
oct5005731670
91655622283
10672641976
11315763966
121693244a0
13a9480b06
1465495cb6
153e0bb4d6
hex2817b3b8

672641976 has 16 divisors (see below), whose sum is σ = 1681605000. Its totient is φ = 224213984.

The previous prime is 672641953. The next prime is 672641987. The reversal of 672641976 is 679146276.

672641976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14013351 + ... + 14013398.

Almost surely, 2672641976 is an apocalyptic number.

It is an amenable number.

672641976 is an abundant number, since it is smaller than the sum of its proper divisors (1008963024).

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

672641976 is a wasteful number, since it uses less digits than its factorization.

672641976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28026758 (or 28026754 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 672641976 is about 25935.3422186791. The cubic root of 672641976 is about 876.1826624363.

The spelling of 672641976 in words is "six hundred seventy-two million, six hundred forty-one thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 24 28026749 56053498 84080247 112106996 168160494 224213992 336320988 672641976