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672390924 = 2231923128221
BaseRepresentation
bin101000000100111…
…101111100001100
31201212012222221120
4220010331330030
52334113002144
6150415400540
722443141252
oct5004757414
91655188846
10672390924
11315602287
12169223150
13a93c376a
146542c5d2
153e06be19
hex2813df0c

672390924 has 48 divisors (see below), whose sum is σ = 1723303680. Its totient is φ = 203100480.

The previous prime is 672390893. The next prime is 672390967. The reversal of 672390924 is 429093276.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58867 + ... + 69354.

It is an arithmetic number, because the mean of its divisors is an integer number (35902160).

Almost surely, 2672390924 is an apocalyptic number.

It is an amenable number.

672390924 is an abundant number, since it is smaller than the sum of its proper divisors (1050912756).

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

672390924 is a wasteful number, since it uses less digits than its factorization.

672390924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128270 (or 128268 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 672390924 is about 25930.5018077167. The cubic root of 672390924 is about 876.0736421900.

The spelling of 672390924 in words is "six hundred seventy-two million, three hundred ninety thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 19 23 38 46 57 69 76 92 114 138 228 276 437 874 1311 1748 2622 5244 128221 256442 384663 512884 769326 1538652 2436199 2949083 4872398 5898166 7308597 8847249 9744796 11796332 14617194 17694498 29234388 35388996 56032577 112065154 168097731 224130308 336195462 672390924