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80056103391 = 3211808647509
BaseRepresentation
bin100101010001110110…
…1110011000111011111
321122122020200102101100
41022203231303013133
52302423330302031
6100435520044143
75532602436225
oct1124355630737
9248566612340
1080056103391
1130a51646420
1213622763653
13771a9492a4
143c363c0b15
1521383a1de6
hex12a3b731df

80056103391 has 12 divisors (see below), whose sum is σ = 126149011560. Its totient is φ = 48518850480.

The previous prime is 80056103389. The next prime is 80056103417. The reversal of 80056103391 is 19330165008.

It is a happy number.

80056103391 is a `hidden beast` number, since 8 + 0 + 0 + 5 + 610 + 3 + 39 + 1 = 666.

It is not a de Polignac number, because 80056103391 - 21 = 80056103389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80056103891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404323656 + ... + 404323853.

It is an arithmetic number, because the mean of its divisors is an integer number (10512417630).

Almost surely, 280056103391 is an apocalyptic number.

80056103391 is a deficient number, since it is larger than the sum of its proper divisors (46092908169).

80056103391 is a wasteful number, since it uses less digits than its factorization.

80056103391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808647526 (or 808647523 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 80056103391 its reverse (19330165008), we get a palindrome (99386268399).

The spelling of 80056103391 in words is "eighty billion, fifty-six million, one hundred three thousand, three hundred ninety-one".

Divisors: 1 3 9 11 33 99 808647509 2425942527 7277827581 8895122599 26685367797 80056103391