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15680008134 = 23372193110061
BaseRepresentation
bin11101001101001100…
…11110111111000110
31111110202200221111000
432212212132333012
5224103040230014
611111524554130
71063364604300
oct164646367706
944422627430
1015680008134
116716a5720a
123057252946
13162b6a892b
14a8a676970
1561b888509
hex3a699efc6

15680008134 has 192 divisors, whose sum is σ = 44047411200. Its totient is φ = 4106894400.

The previous prime is 15680008133. The next prime is 15680008139. The reversal of 15680008134 is 43180008651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15680008133) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1553464 + ... + 1563524.

It is an arithmetic number, because the mean of its divisors is an integer number (229413600).

Almost surely, 215680008134 is an apocalyptic number.

15680008134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15680008134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22023705600).

15680008134 is an abundant number, since it is smaller than the sum of its proper divisors (28367403066).

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

15680008134 is a wasteful number, since it uses less digits than its factorization.

15680008134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10136 (or 10123 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 15680008134 in words is "fifteen billion, six hundred eighty million, eight thousand, one hundred thirty-four".