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80855310 = 2352695177
BaseRepresentation
bin1001101000111…
…00000100001110
312122010212122010
410310130010032
5131144332220
612005002050
72001154524
oct464340416
9178125563
1080855310
1141705878
12230b3326
131399c7a3
14aa4a314
1571721e0
hex4d1c10e

80855310 has 16 divisors (see below), whose sum is σ = 194052816. Its totient is φ = 21561408.

The previous prime is 80855287. The next prime is 80855329. The reversal of 80855310 is 1355808.

It is a happy number.

It is a super-2 number, since 2×808553102 = 13075162310392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2695177 = 80855310 / (8 + 0 + 8 + 5 + 5 + 3 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347559 + ... + 1347618.

It is an arithmetic number, because the mean of its divisors is an integer number (12128301).

Almost surely, 280855310 is an apocalyptic number.

80855310 is an abundant number, since it is smaller than the sum of its proper divisors (113197506).

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

80855310 is a wasteful number, since it uses less digits than its factorization.

80855310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695187.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 80855310 is about 8991.9580737457. The cubic root of 80855310 is about 432.4170890329.

The spelling of 80855310 in words is "eighty million, eight hundred fifty-five thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 2695177 5390354 8085531 13475885 16171062 26951770 40427655 80855310