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80951 = 132479
BaseRepresentation
bin10011110000110111
311010001012
4103300313
510042301
61422435
7455003
oct236067
9133035
1080951
1155902
123aa1b
132ab00
1421703
1518ebb
hex13c37

80951 has 6 divisors (see below), whose sum is σ = 87840. Its totient is φ = 74568.

The previous prime is 80933. The next prime is 80953. The reversal of 80951 is 15908.

It is not a de Polignac number, because 80951 - 214 = 64567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80951.

It is not an unprimeable number, because it can be changed into a prime (80953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71 + ... + 408.

It is an arithmetic number, because the mean of its divisors is an integer number (14640).

280951 is an apocalyptic number.

80951 is a deficient number, since it is larger than the sum of its proper divisors (6889).

80951 is a wasteful number, since it uses less digits than its factorization.

80951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 80951 is about 284.5188921671. The cubic root of 80951 is about 43.2587606297.

The spelling of 80951 in words is "eighty thousand, nine hundred fifty-one".

Divisors: 1 13 169 479 6227 80951