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13183324997 = 371061335821
BaseRepresentation
bin11000100011100100…
…11001001101000101
31021000202202022002012
430101302121031011
5203444412344442
610020100224005
7644460261563
oct142162311505
937022668065
1013183324997
115655709217
12267b09b005
13132136b12b
148d0c4aa33
155225b5582
hex311c99345

13183324997 has 8 divisors (see below), whose sum is σ = 13552432632. Its totient is φ = 12814891200.

The previous prime is 13183324969. The next prime is 13183325021. The reversal of 13183324997 is 79942338131.

It can be written as a sum of positive squares in 4 ways, for example, as 2690600641 + 10492724356 = 51871^2 + 102434^2 .

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 13183324997 - 28 = 13183324741 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 (13183321997) 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, 128654 + ... + 207167.

It is an arithmetic number, because the mean of its divisors is an integer number (1694054079).

Almost surely, 213183324997 is an apocalyptic number.

It is an amenable number.

13183324997 is a deficient number, since it is larger than the sum of its proper divisors (369107635).

13183324997 is a wasteful number, since it uses less digits than its factorization.

13183324997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336919.

The product of its digits is 979776, while the sum is 50.

The spelling of 13183324997 in words is "thirteen billion, one hundred eighty-three million, three hundred twenty-four thousand, nine hundred ninety-seven".

Divisors: 1 37 1061 39257 335821 12425377 356306081 13183324997