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80319590 = 2513617843
BaseRepresentation
bin1001100100110…
…01010001100110
312121010122202122
410302121101212
5131030211330
611545305542
71663463621
oct462312146
9177118678
1080319590
114137a32a
1222a952b2
13138429b0
14a94adb8
1570b85e5
hex4c99466

80319590 has 16 divisors (see below), whose sum is σ = 155696688. Its totient is φ = 29656416.

The previous prime is 80319529. The next prime is 80319601. The reversal of 80319590 is 9591308.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80319590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308792 + ... + 309051.

It is an arithmetic number, because the mean of its divisors is an integer number (9731043).

Almost surely, 280319590 is an apocalyptic number.

80319590 is a deficient number, since it is larger than the sum of its proper divisors (75377098).

80319590 is a wasteful number, since it uses less digits than its factorization.

80319590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617863.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 80319590 is about 8962.1197269396. The cubic root of 80319590 is about 431.4599554569.

The spelling of 80319590 in words is "eighty million, three hundred nineteen thousand, five hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 617843 1235686 3089215 6178430 8031959 16063918 40159795 80319590