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80138506063 = 71127121372
BaseRepresentation
bin100101010100010100…
…0001000111101001111
321122211222201220121011
41022220220020331033
52303110424143223
6100452022150051
75534623030240
oct1125050107517
9248758656534
1080138506063
1130a94108800
1213646282327
137731a3b175
143c43310cc7
15214072c80d
hex12a8a08f4f

80138506063 has 54 divisors (see below), whose sum is σ = 102858466424. Its totient is φ = 61116686400.

The previous prime is 80138506031. The next prime is 80138506067. The reversal of 80138506063 is 36060583108.

It is not a de Polignac number, because 80138506063 - 25 = 80138506031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80138506067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 584952531 + ... + 584952667.

Almost surely, 280138506063 is an apocalyptic number.

80138506063 is a deficient number, since it is larger than the sum of its proper divisors (22719960361).

80138506063 is an equidigital number, since it uses as much as digits as its factorization.

80138506063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 80138506063 in words is "eighty billion, one hundred thirty-eight million, five hundred six thousand, sixty-three".

Divisors: 1 7 11 71 77 121 137 497 781 847 959 1507 5041 5467 8591 9727 10549 16577 18769 35287 55451 60137 68089 106997 116039 131383 206459 388157 609961 690617 748979 1176967 1332599 1445213 2271049 4269727 4834319 7596787 8238769 9328193 14658589 15897343 53177509 83564657 94614529 102610123 161244479 584952599 662301703 1040759819 1128711353 7285318733 11448358009 80138506063