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423769980 = 223553133261
BaseRepresentation
bin11001010000100…
…011011101111100
31002112101202010110
4121100203131330
51331441114410
6110014510020
713333661664
oct3120433574
91075352113
10423769980
111a8230727
12b9b05310
1369a4498a
14403d11a4
152730b720
hex1942377c

423769980 has 48 divisors (see below), whose sum is σ = 1208952864. Its totient is φ = 110872320.

The previous prime is 423769979. The next prime is 423769993. The reversal of 423769980 is 89967324.

It is a congruent 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, 63451 + ... + 69810.

It is an arithmetic number, because the mean of its divisors is an integer number (25186518).

Almost surely, 2423769980 is an apocalyptic number.

It is an amenable number.

423769980 is an abundant number, since it is smaller than the sum of its proper divisors (785182884).

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

423769980 is a wasteful number, since it uses less digits than its factorization.

423769980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133326 (or 133324 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 423769980 is about 20585.6741448999. The cubic root of 423769980 is about 751.1212739354.

The spelling of 423769980 in words is "four hundred twenty-three million, seven hundred sixty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 133261 266522 399783 533044 666305 799566 1332610 1599132 1998915 2665220 3997830 7062833 7995660 14125666 21188499 28251332 35314165 42376998 70628330 84753996 105942495 141256660 211884990 423769980