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8107141385 = 57257757349
BaseRepresentation
bin1111000110011100…
…10010100100001001
3202221000000110020202
413203032102210021
5113100412011020
63420244101545
7404621364500
oct74316224411
922830013222
108107141385
1134902a7352
1216a30948b5
139c27b72a5
1456c9d7837
15326b10e75
hex1e3392909

8107141385 has 24 divisors (see below), whose sum is σ = 11336718600. Its totient is φ = 5549451264.

The previous prime is 8107141379. The next prime is 8107141391. The reversal of 8107141385 is 5831417018.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8107141379) and next prime (8107141391).

It can be written as a sum of positive squares in 4 ways, for example, as 3492928201 + 4614213184 = 59101^2 + 67928^2 .

It is not a de Polignac number, because 8107141385 - 28 = 8107141129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112691 + ... + 170039.

It is an arithmetic number, because the mean of its divisors is an integer number (472363275).

Almost surely, 28107141385 is an apocalyptic number.

It is an amenable number.

8107141385 is a deficient number, since it is larger than the sum of its proper divisors (3229577215).

8107141385 is a wasteful number, since it uses less digits than its factorization.

8107141385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57945 (or 57938 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 8107141385 is about 90039.6656202143. The cubic root of 8107141385 is about 2008.8888840922. Note that the first 5 decimals are identical.

The spelling of 8107141385 in words is "eight billion, one hundred seven million, one hundred forty-one thousand, three hundred eighty-five".

Divisors: 1 5 7 35 49 245 577 2885 4039 20195 28273 57349 141365 286745 401443 2007215 2810101 14050505 33090373 165451865 231632611 1158163055 1621428277 8107141385