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672730974 = 23312457981
BaseRepresentation
bin101000000110010…
…000111101011110
31201212212021102000
4220012100331132
52334204342344
6150430543130
722446055536
oct5006207536
91655767360
10672730974
11315814813
12169367aa6
13a94b2486
14654ba4c6
153e0d7a69
hex28190f5e

672730974 has 16 divisors (see below), whose sum is σ = 1494957840. Its totient is φ = 224243640.

The previous prime is 672730957. The next prime is 672730999. The reversal of 672730974 is 479037276.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228937 + ... + 6229044.

It is an arithmetic number, because the mean of its divisors is an integer number (93434865).

Almost surely, 2672730974 is an apocalyptic number.

672730974 is an abundant number, since it is smaller than the sum of its proper divisors (822226866).

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

672730974 is a wasteful number, since it uses less digits than its factorization.

672730974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457992 (or 12457986 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 672730974 is about 25937.0579287629. The cubic root of 672730974 is about 876.2213036295.

The spelling of 672730974 in words is "six hundred seventy-two million, seven hundred thirty thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 12457981 24915962 37373943 74747886 112121829 224243658 336365487 672730974