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80767764189 = 3271282028003
BaseRepresentation
bin100101100111000100…
…0100100011011011101
321201110211210112110200
41023032020210123131
52310403021423224
6101034301254113
75556333445110
oct1131610443335
9251424715420
1080767764189
113128732a742
12137a0b64339
13780220c158
143ca2b12577
15217aac95c9
hex12ce2246dd

80767764189 has 12 divisors (see below), whose sum is σ = 133330912416. Its totient is φ = 46153008072.

The previous prime is 80767764163. The next prime is 80767764223. The reversal of 80767764189 is 98146776708.

80767764189 is a `hidden beast` number, since 80 + 76 + 7 + 76 + 418 + 9 = 666.

It is not a de Polignac number, because 80767764189 - 217 = 80767633117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 1282028003 = 80767764189 / (8 + 0 + 7 + 6 + 7 + 7 + 6 + 4 + 1 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80767764589) 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, 641013939 + ... + 641014064.

It is an arithmetic number, because the mean of its divisors is an integer number (11110909368).

Almost surely, 280767764189 is an apocalyptic number.

It is an amenable number.

80767764189 is a deficient number, since it is larger than the sum of its proper divisors (52563148227).

80767764189 is a wasteful number, since it uses less digits than its factorization.

80767764189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282028016 (or 1282028013 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 80767764189 in words is "eighty billion, seven hundred sixty-seven million, seven hundred sixty-four thousand, one hundred eighty-nine".

Divisors: 1 3 7 9 21 63 1282028003 3846084009 8974196021 11538252027 26922588063 80767764189