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13320133031 = 16138257987
BaseRepresentation
bin11000110011111000…
…10001100110100111
31021101022011212102102
430121330101212213
5204234423224111
610041424402315
7651041156042
oct143174214647
937338155372
1013320133031
115715960107
1226b8a7639b
1313437cb62a
1490509dc59
1552e5db13b
hex319f119a7

13320133031 has 4 divisors (see below), whose sum is σ = 13328392632. Its totient is φ = 13311873432.

The previous prime is 13320133003. The next prime is 13320133051. The reversal of 13320133031 is 13033102331.

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

It is a cyclic number.

It is not a de Polignac number, because 13320133031 - 26 = 13320132967 is a prime.

It is a super-2 number, since 2×133201330312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320132994 and 13320133012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320133051) 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, 4127381 + ... + 4130606.

It is an arithmetic number, because the mean of its divisors is an integer number (3332098158).

Almost surely, 213320133031 is an apocalyptic number.

13320133031 is a deficient number, since it is larger than the sum of its proper divisors (8259601).

13320133031 is an equidigital number, since it uses as much as digits as its factorization.

13320133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259600.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13320133031 its reverse (13033102331), we get a palindrome (26353235362).

The spelling of 13320133031 in words is "thirteen billion, three hundred twenty million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 1613 8257987 13320133031