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672299880 = 23357800357
BaseRepresentation
bin101000000100100…
…111101101101000
31201212001101001120
4220010213231220
52334102044010
6150413415240
722442311650
oct5004475550
91655041046
10672299880
1131554a93a
1216919a520
13a93911a5
1465407360
153e04ee70
hex28127b68

672299880 has 64 divisors (see below), whose sum is σ = 2305031040. Its totient is φ = 153668352.

The previous prime is 672299861. The next prime is 672299893. The reversal of 672299880 is 88992276.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399339 + ... + 401018.

It is an arithmetic number, because the mean of its divisors is an integer number (36016110).

Almost surely, 2672299880 is an apocalyptic number.

672299880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672299880 is an abundant number, since it is smaller than the sum of its proper divisors (1632731160).

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

672299880 is a wasteful number, since it uses less digits than its factorization.

672299880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800378 (or 800374 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 672299880 is about 25928.7462095644. The cubic root of 672299880 is about 876.0340992961.

The spelling of 672299880 in words is "six hundred seventy-two million, two hundred ninety-nine thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 800357 1600714 2401071 3201428 4001785 4802142 5602499 6402856 8003570 9604284 11204998 12005355 16007140 16807497 19208568 22409996 24010710 28012495 32014280 33614994 44819992 48021420 56024990 67229988 84037485 96042840 112049980 134459976 168074970 224099960 336149940 672299880