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80308518 = 2313384753
BaseRepresentation
bin1001100100101…
…10100100100110
312121010002120120
410302112210212
5131024333033
611545142410
71663416423
oct462264446
9177102516
1080308518
1141371a84
1222a8aa06
131383a944
14a946d4a
1570b51b3
hex4c96926

80308518 has 8 divisors (see below), whose sum is σ = 160617048. Its totient is φ = 26769504.

The previous prime is 80308489. The next prime is 80308523. The reversal of 80308518 is 81580308.

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

80308518 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6692371 + ... + 6692382.

It is an arithmetic number, because the mean of its divisors is an integer number (20077131).

Almost surely, 280308518 is an apocalyptic number.

80308518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80308518 is a wasteful number, since it uses less digits than its factorization.

80308518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384758.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 80308518 is about 8961.5019946435. The cubic root of 80308518 is about 431.4401290602.

The spelling of 80308518 in words is "eighty million, three hundred eight thousand, five hundred eighteen".

Divisors: 1 2 3 6 13384753 26769506 40154259 80308518