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80260313 = 7192920809
BaseRepresentation
bin1001100100010…
…10110011011001
312121000122110012
410302022303121
5131021312223
611544131305
71663126040
oct462126331
9177018405
1080260313
1141339841
1222a66b35
1313821a13
14a933557
1570a5c78
hex4c8acd9

80260313 has 16 divisors (see below), whose sum is σ = 99888000. Its totient is φ = 62923392.

The previous prime is 80260309. The next prime is 80260321. The reversal of 80260313 is 31306208.

It is not a de Polignac number, because 80260313 - 22 = 80260309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80260303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6548 + ... + 14261.

It is an arithmetic number, because the mean of its divisors is an integer number (6243000).

Almost surely, 280260313 is an apocalyptic number.

It is an amenable number.

80260313 is a deficient number, since it is larger than the sum of its proper divisors (19627687).

80260313 is a wasteful number, since it uses less digits than its factorization.

80260313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20864.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 80260313 is about 8958.8120306210. The cubic root of 80260313 is about 431.3537881400.

The spelling of 80260313 in words is "eighty million, two hundred sixty thousand, three hundred thirteen".

Divisors: 1 7 19 29 133 203 551 3857 20809 145663 395371 603461 2767597 4224227 11465759 80260313