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13057103847 = 34352367949
BaseRepresentation
bin11000010100100001…
…11001011111100111
31020200222020121012210
430022100321133213
5203220104310342
65555351014503
7641365360104
oct141220713747
936628217183
1013057103847
1155a0438417
12264496a433
131301176668
148bc191aab
1551648179c
hex30a4397e7

13057103847 has 4 divisors (see below), whose sum is σ = 17409471800. Its totient is φ = 8704735896.

The previous prime is 13057103833. The next prime is 13057103911. The reversal of 13057103847 is 74830175031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13057103847 - 219 = 13056579559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057103747) 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, 2176183972 + ... + 2176183977.

It is an arithmetic number, because the mean of its divisors is an integer number (4352367950).

Almost surely, 213057103847 is an apocalyptic number.

13057103847 is a deficient number, since it is larger than the sum of its proper divisors (4352367953).

13057103847 is an equidigital number, since it uses as much as digits as its factorization.

13057103847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352367952.

The product of its (nonzero) digits is 70560, while the sum is 39.

Adding to 13057103847 its reverse (74830175031), we get a palindrome (87887278878).

The spelling of 13057103847 in words is "thirteen billion, fifty-seven million, one hundred three thousand, eight hundred forty-seven".

Divisors: 1 3 4352367949 13057103847