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10638882853 = 65771617589
BaseRepresentation
bin10011110100010000…
…00111100000100101
31000110102221020122021
421322020013200211
5133242023222403
64515404103141
7524433004114
oct117210074045
930412836567
1010638882853
11456a410175
12208ab34ab1
13100717b271
1472cd4bc7b
1542400b8bd
hex27a207825

10638882853 has 4 divisors (see below), whose sum is σ = 10640507020. Its totient is φ = 10637258688.

The previous prime is 10638882847. The next prime is 10638882869. The reversal of 10638882853 is 35828883601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35828883601 = 75118411943.

It can be written as a sum of positive squares in 2 ways, for example, as 9575992449 + 1062890404 = 97857^2 + 32602^2 .

It is a cyclic number.

It is not a de Polignac number, because 10638882853 - 29 = 10638882341 is a prime.

It is a super-2 number, since 2×106388828532 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10638882853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10636882853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802218 + ... + 815371.

It is an arithmetic number, because the mean of its divisors is an integer number (2660126755).

Almost surely, 210638882853 is an apocalyptic number.

It is an amenable number.

10638882853 is a deficient number, since it is larger than the sum of its proper divisors (1624167).

10638882853 is an equidigital number, since it uses as much as digits as its factorization.

10638882853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624166.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 10638882853 in words is "ten billion, six hundred thirty-eight million, eight hundred eighty-two thousand, eight hundred fifty-three".

Divisors: 1 6577 1617589 10638882853