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79960 = 2351999
BaseRepresentation
bin10011100001011000
311001200111
4103201120
510024320
61414104
7452056
oct234130
9131614
1079960
1155091
123a334
132a51a
14211d6
1518a5a
hex13858

79960 has 16 divisors (see below), whose sum is σ = 180000. Its totient is φ = 31968.

The previous prime is 79943. The next prime is 79967. The reversal of 79960 is 6997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (11250).

279960 is an apocalyptic number.

It is an amenable number.

79960 is an abundant number, since it is smaller than the sum of its proper divisors (100040).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90000).

79960 is a wasteful number, since it uses less digits than its factorization.

79960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 79960 is about 282.7719929555. The cubic root of 79960 is about 43.0815111544.

The spelling of 79960 in words is "seventy-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1999 3998 7996 9995 15992 19990 39980 79960