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17920136076 = 2239191624967
BaseRepresentation
bin10000101100000111…
…111001001110001100
31201020212220020022120
4100230013321032030
5243200023323301
612122110412540
71203035433453
oct205407711614
951225806276
1017920136076
1176664a4517
123581501150
1318c781a11b
14c1dd9bb9a
156ed37ee36
hex42c1f938c

17920136076 has 24 divisors (see below), whose sum is σ = 41859175680. Its totient is φ = 5966875152.

The previous prime is 17920136071. The next prime is 17920136089. The reversal of 17920136076 is 67063102971.

It is a super-2 number, since 2×179201360762 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17920136071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801456 + ... + 823511.

It is an arithmetic number, because the mean of its divisors is an integer number (1744132320).

Almost surely, 217920136076 is an apocalyptic number.

It is an amenable number.

17920136076 is an abundant number, since it is smaller than the sum of its proper divisors (23939039604).

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

17920136076 is a wasteful number, since it uses less digits than its factorization.

17920136076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625893 (or 1625891 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 17920136076 in words is "seventeen billion, nine hundred twenty million, one hundred thirty-six thousand, seventy-six".

Divisors: 1 2 3 4 6 12 919 1838 2757 3676 5514 11028 1624967 3249934 4874901 6499868 9749802 19499604 1493344673 2986689346 4480034019 5973378692 8960068038 17920136076