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80054126111 = 251533182687
BaseRepresentation
bin100101010001110011…
…0010000011000011111
321122122002221222001202
41022203212100120133
52302422324013421
6100435405430115
75532546562451
oct1124346203037
9248562858052
1080054126111
1130a50515903
1213621b6b33b
13771a4062bb
143c360282d1
15213811110b
hex12a399061f

80054126111 has 4 divisors (see below), whose sum is σ = 80057333952. Its totient is φ = 80050918272.

The previous prime is 80054126059. The next prime is 80054126167. The reversal of 80054126111 is 11162145008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80054126111 - 210 = 80054125087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80054126011) 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 3 ways as a sum of consecutive naturals, for example, 1566191 + ... + 1616496.

It is an arithmetic number, because the mean of its divisors is an integer number (20014333488).

Almost surely, 280054126111 is an apocalyptic number.

80054126111 is a deficient number, since it is larger than the sum of its proper divisors (3207841).

80054126111 is a wasteful number, since it uses less digits than its factorization.

80054126111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207840.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 80054126111 in words is "eighty billion, fifty-four million, one hundred twenty-six thousand, one hundred eleven".

Divisors: 1 25153 3182687 80054126111