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80944265 = 5101915887
BaseRepresentation
bin1001101001100…
…01110010001001
312122022101122202
410310301302021
5131210204030
612010525545
72002005053
oct464616211
9178271582
1080944265
1141766696
12231368b5
1313a0111c
14aa708d3
15718d745
hex4d31c89

80944265 has 8 divisors (see below), whose sum is σ = 97234560. Its totient is φ = 64687792.

The previous prime is 80944247. The next prime is 80944267. The reversal of 80944265 is 56244908.

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

It is a cyclic number.

It is not a de Polignac number, because 80944265 - 210 = 80943241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80944267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2849 + ... + 13038.

It is an arithmetic number, because the mean of its divisors is an integer number (12154320).

Almost surely, 280944265 is an apocalyptic number.

It is an amenable number.

80944265 is a deficient number, since it is larger than the sum of its proper divisors (16290295).

80944265 is a wasteful number, since it uses less digits than its factorization.

80944265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 80944265 is about 8996.9030782820. The cubic root of 80944265 is about 432.5756090875.

The spelling of 80944265 in words is "eighty million, nine hundred forty-four thousand, two hundred sixty-five".

Divisors: 1 5 1019 5095 15887 79435 16188853 80944265