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13056513038 = 28378653693
BaseRepresentation
bin11000010100011101…
…01001010000001110
31020200221010120202222
430022032221100032
5203214431404123
65555330215342
7641360346452
oct141216512016
936627116688
1013056513038
1155a0074548
122644724552
131300cca77a
148bc07a662
155163b66c8
hex30a3a940e

13056513038 has 8 divisors (see below), whose sum is σ = 19820730888. Its totient is φ = 6449602744.

The previous prime is 13056513031. The next prime is 13056513049. The reversal of 13056513038 is 83031565031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×130565130383 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13056512989 and 13056513007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056513031) 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, 39326681 + ... + 39327012.

It is an arithmetic number, because the mean of its divisors is an integer number (2477591361).

Almost surely, 213056513038 is an apocalyptic number.

13056513038 is a deficient number, since it is larger than the sum of its proper divisors (6764217850).

13056513038 is an equidigital number, since it uses as much as digits as its factorization.

13056513038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78653778.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 13056513038 in words is "thirteen billion, fifty-six million, five hundred thirteen thousand, thirty-eight".

Divisors: 1 2 83 166 78653693 157307386 6528256519 13056513038