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13038385537 = 54724779623
BaseRepresentation
bin11000010010010010…
…11111100110000001
31020122200000121112001
430021021133212001
5203200311314122
65553441504001
7641050306552
oct141111374601
936580017461
1013038385537
115590913041
12263a642001
1312ca321738
148b98bc329
155149d5527
hex30925f981

13038385537 has 8 divisors (see below), whose sum is σ = 13068853056. Its totient is φ = 13007943312.

The previous prime is 13038385487. The next prime is 13038385541. The reversal of 13038385537 is 73558383031.

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 13038385537 - 223 = 13029996929 is a prime.

It is a super-2 number, since 2×130383855372 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13038385837) 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, 1350108 + ... + 1359730.

It is an arithmetic number, because the mean of its divisors is an integer number (1633606632).

Almost surely, 213038385537 is an apocalyptic number.

It is an amenable number.

13038385537 is a deficient number, since it is larger than the sum of its proper divisors (30467519).

13038385537 is an equidigital number, since it uses as much as digits as its factorization.

13038385537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12647.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 13038385537 in words is "thirteen billion, thirty-eight million, three hundred eighty-five thousand, five hundred thirty-seven".

Divisors: 1 547 2477 9623 1354919 5263781 23836171 13038385537