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80787952 = 247721321
BaseRepresentation
bin1001101000010…
…11100111110000
312122000110020101
410310023213300
5131140203302
612003322144
72000454250
oct464134760
9178013211
1080787952
114166a203
1223080354
1313977c2b
14aa2d960
15715c287
hex4d0b9f0

80787952 has 20 divisors (see below), whose sum is σ = 178887856. Its totient is φ = 34623360.

The previous prime is 80787929. The next prime is 80787977. The reversal of 80787952 is 25978708.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 360549 + ... + 360772.

Almost surely, 280787952 is an apocalyptic number.

It is an amenable number.

80787952 is an abundant number, since it is smaller than the sum of its proper divisors (98099904).

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

80787952 is a wasteful number, since it uses less digits than its factorization.

80787952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721336 (or 721330 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 80787952 is about 8988.2118355099. The cubic root of 80787952 is about 432.2969780090.

The spelling of 80787952 in words is "eighty million, seven hundred eighty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 721321 1442642 2885284 5049247 5770568 10098494 11541136 20196988 40393976 80787952