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13210332131 = 28434646617
BaseRepresentation
bin11000100110110010…
…11010101111100011
31021002122120101220102
430103121122233203
5204023321112011
610022503133015
7645235653563
oct142331325743
937078511812
1013210332131
115669985067
12268814416b
131326b35a99
148d467ada3
15524b4c73b
hex31365abe3

13210332131 has 4 divisors (see below), whose sum is σ = 13214981592. Its totient is φ = 13205682672.

The previous prime is 13210332119. The next prime is 13210332133. The reversal of 13210332131 is 13123301231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13210332131 is a prime.

It is a super-2 number, since 2×132103321312 (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 (13210332133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320466 + ... + 2326151.

It is an arithmetic number, because the mean of its divisors is an integer number (3303745398).

Almost surely, 213210332131 is an apocalyptic number.

13210332131 is a deficient number, since it is larger than the sum of its proper divisors (4649461).

13210332131 is an equidigital number, since it uses as much as digits as its factorization.

13210332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649460.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13210332131 its reverse (13123301231), we get a palindrome (26333633362).

The spelling of 13210332131 in words is "thirteen billion, two hundred ten million, three hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 2843 4646617 13210332131