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80109257011 = 7314370912109
BaseRepresentation
bin100101010011011100…
…0100100000100110011
321122202221200220102221
41022212320210010303
52303030432211021
6100445055221511
75534116310110
oct1124670440463
9248687626387
1080109257011
1130a79650533
1213638517897
137728969c34
143c3d499907
15213cda1241
hex12a6e24133

80109257011 has 32 divisors (see below), whose sum is σ = 96848998400. Its totient is φ = 64807827840.

The previous prime is 80109256991. The next prime is 80109257023. The reversal of 80109257011 is 11075290108.

It is a happy number.

It is not a de Polignac number, because 80109257011 - 233 = 71519322419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80109257411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6609625 + ... + 6621733.

It is an arithmetic number, because the mean of its divisors is an integer number (3026531200).

Almost surely, 280109257011 is an apocalyptic number.

80109257011 is a deficient number, since it is larger than the sum of its proper divisors (16739741389).

80109257011 is a wasteful number, since it uses less digits than its factorization.

80109257011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 80109257011 in words is "eighty billion, one hundred nine million, two hundred fifty-seven thousand, eleven".

Divisors: 1 7 31 43 217 301 709 1333 4963 9331 12109 21979 30487 84763 153853 213409 375379 520687 945097 2627653 3644809 6615679 8585281 16141297 60096967 112989079 266143711 369167083 1863005977 2584169581 11444179573 80109257011