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8107731055 = 54337710377
BaseRepresentation
bin1111000110100001…
…00010100001101111
3202221001010102010101
413203100202201233
5113101034343210
63420304451531
7404626401604
oct74320424157
922831112111
108107731055
11349066a386
1216a3319ba7
139c29627c8
1456cb0c6ab
15326bcaa3a
hex1e342286f

8107731055 has 8 divisors (see below), whose sum is σ = 9955539792. Its totient is φ = 6335343168.

The previous prime is 8107731019. The next prime is 8107731059. The reversal of 8107731055 is 5501377018.

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

It is a cyclic number.

It is not a de Polignac number, because 8107731055 - 231 = 5960247407 is a prime.

It is a super-2 number, since 2×81077310552 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8107731059) 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, 18854974 + ... + 18855403.

It is an arithmetic number, because the mean of its divisors is an integer number (1244442474).

Almost surely, 28107731055 is an apocalyptic number.

8107731055 is a deficient number, since it is larger than the sum of its proper divisors (1847808737).

8107731055 is a wasteful number, since it uses less digits than its factorization.

8107731055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37710425.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 8107731055 is about 90042.9400619504. The cubic root of 8107731055 is about 2008.9375881805.

The spelling of 8107731055 in words is "eight billion, one hundred seven million, seven hundred thirty-one thousand, fifty-five".

Divisors: 1 5 43 215 37710377 188551885 1621546211 8107731055