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80879412 = 22361110491
BaseRepresentation
bin1001101001000…
…01111100110100
312122012002200210
410310201330310
5131201120122
612005305420
72001315015
oct464417464
9178162623
1080879412
1141721999
1223105270
13139aa753
14aa5500c
15717940c
hex4d21f34

80879412 has 24 divisors (see below), whose sum is σ = 191814112. Its totient is φ = 26517600.

The previous prime is 80879399. The next prime is 80879413. The reversal of 80879412 is 21497808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80879413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54514 + ... + 55977.

Almost surely, 280879412 is an apocalyptic number.

It is an amenable number.

80879412 is an abundant number, since it is smaller than the sum of its proper divisors (110934700).

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

80879412 is a wasteful number, since it uses less digits than its factorization.

80879412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110559 (or 110557 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 80879412 is about 8993.2981714163. The cubic root of 80879412 is about 432.4600508837.

The spelling of 80879412 in words is "eighty million, eight hundred seventy-nine thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 110491 220982 331473 441964 662946 1325892 6739951 13479902 20219853 26959804 40439706 80879412