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80131634 = 2113642347
BaseRepresentation
bin1001100011010…
…11011000110010
312120210002221022
410301223120302
5131003203014
611541255442
71662051632
oct461533062
9176702838
1080131634
11412610a0
1222a04582
13137a828b
14a8dc6c2
15707ca8e
hex4c6b632

80131634 has 8 divisors (see below), whose sum is σ = 131124528. Its totient is φ = 36423460.

The previous prime is 80131633. The next prime is 80131687. The reversal of 80131634 is 43613108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80131633) 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 3 ways as a sum of consecutive naturals, for example, 1821152 + ... + 1821195.

It is an arithmetic number, because the mean of its divisors is an integer number (16390566).

Almost surely, 280131634 is an apocalyptic number.

80131634 is a deficient number, since it is larger than the sum of its proper divisors (50992894).

80131634 is a wasteful number, since it uses less digits than its factorization.

80131634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642360.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 80131634 is about 8951.6274497993. The cubic root of 80131634 is about 431.1231392166.

The spelling of 80131634 in words is "eighty million, one hundred thirty-one thousand, six hundred thirty-four".

Divisors: 1 2 11 22 3642347 7284694 40065817 80131634