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8681090523 = 37413385263
BaseRepresentation
bin10000001010110111…
…01110110111011011
3211102000000002110020
420011123232313123
5120234324344043
63553225521523
7425061023550
oct100533566733
924360002406
108681090523
113755281886
1218233432a3
13a84691571
145c4d1ca27
1535c1d4e83
hex2056eeddb

8681090523 has 8 divisors (see below), whose sum is σ = 13228328448. Its totient is φ = 4960623144.

The previous prime is 8681090513. The next prime is 8681090543. The reversal of 8681090523 is 3250901868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8681090523 - 210 = 8681089499 is a prime.

It is a super-2 number, since 2×86810905232 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8681090513) 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, 206692611 + ... + 206692652.

It is an arithmetic number, because the mean of its divisors is an integer number (1653541056).

Almost surely, 28681090523 is an apocalyptic number.

8681090523 is a deficient number, since it is larger than the sum of its proper divisors (4547237925).

8681090523 is a wasteful number, since it uses less digits than its factorization.

8681090523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413385273.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 8681090523 is about 93172.3699548316. The cubic root of 8681090523 is about 2055.2189467229.

The spelling of 8681090523 in words is "eight billion, six hundred eighty-one million, ninety thousand, five hundred twenty-three".

Divisors: 1 3 7 21 413385263 1240155789 2893696841 8681090523