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10639537747 = 79527325541
BaseRepresentation
bin10011110100010101…
…00111011001010011
31000110111011111222121
421322022213121103
5133242210201442
64515430115111
7524441402326
oct117212473123
930414144877
1010639537747
11456a818203
12208b1aba97
13100734a387
1472d07c7bd
154240da967
hex27a2a7653

10639537747 has 8 divisors (see below), whose sum is σ = 10776680640. Its totient is φ = 10502456640.

The previous prime is 10639537739. The next prime is 10639537759. The reversal of 10639537747 is 74773593601.

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 10639537747 - 23 = 10639537739 is a prime.

It is a super-2 number, since 2×106395377472 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10639537694 and 10639537703.

It is not an unprimeable number, because it can be changed into a prime (10639537717) 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, 403797 + ... + 429337.

It is an arithmetic number, because the mean of its divisors is an integer number (1347085080).

Almost surely, 210639537747 is an apocalyptic number.

10639537747 is a deficient number, since it is larger than the sum of its proper divisors (137142893).

10639537747 is an equidigital number, since it uses as much as digits as its factorization.

10639537747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30893.

The product of its (nonzero) digits is 3333960, while the sum is 52.

The spelling of 10639537747 in words is "ten billion, six hundred thirty-nine million, five hundred thirty-seven thousand, seven hundred forty-seven".

Divisors: 1 79 5273 25541 416567 2017739 134677693 10639537747