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80330055 = 3513491839
BaseRepresentation
bin1001100100110…
…11110101000111
312121011012010020
410302123311013
5131031030210
611545430223
71663536261
oct462336507
9177135106
1080330055
1141387183
1222a9b373
13138476a0
14a950b31
1570bb770
hex4c9bd47

80330055 has 32 divisors (see below), whose sum is σ = 138862080. Its totient is φ = 39419520.

The previous prime is 80330027. The next prime is 80330069. The reversal of 80330055 is 55003308.

It is not a de Polignac number, because 80330055 - 25 = 80330023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95326 + ... + 96164.

It is an arithmetic number, because the mean of its divisors is an integer number (4339440).

Almost surely, 280330055 is an apocalyptic number.

80330055 is a deficient number, since it is larger than the sum of its proper divisors (58532025).

80330055 is a wasteful number, since it uses less digits than its factorization.

80330055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 80330055 is about 8962.7035541738. The cubic root of 80330055 is about 431.4786932366.

The spelling of 80330055 in words is "eighty million, three hundred thirty thousand, fifty-five".

Divisors: 1 3 5 13 15 39 65 195 491 839 1473 2455 2517 4195 6383 7365 10907 12585 19149 31915 32721 54535 95745 163605 411949 1235847 2059745 5355337 6179235 16066011 26776685 80330055