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80710766040 = 233517197229877
BaseRepresentation
bin100101100101010111…
…1001000110111011000
321201022212112201201010
41023022233020313120
52310243424003130
6101024503453520
75555042122542
oct1131257106730
9251285481633
1080710766040
113125813a133
1213785a572a0
1377c3473638
143c99316692
152175abb0b0
hex12cabc8dd8

80710766040 has 256 divisors, whose sum is σ = 259097097600. Its totient is φ = 20043104256.

The previous prime is 80710766039. The next prime is 80710766047. The reversal of 80710766040 is 4066701708.

It is a self number, because there is not a number n which added to its sum of digits gives 80710766040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80710766047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92030082 + ... + 92030958.

Almost surely, 280710766040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80710766040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129548548800).

80710766040 is an abundant number, since it is smaller than the sum of its proper divisors (178386331560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80710766040 is a wasteful number, since it uses less digits than its factorization.

80710766040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 80710766040 in words is "eighty billion, seven hundred ten million, seven hundred sixty-six thousand, forty".