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13213232200031 = 17777248952943
BaseRepresentation
bin1100000001000111001000…
…0000101111100101011111
31201210011122212111121210112
43000101302000233211133
53212441144420400111
644034024114400235
72532424132401143
oct300216200574537
951704585447715
1013213232200031
1142347781216a6
12159499089007b
1374b0054c8a46
14339749637223
1517da8e627e8b
hexc047202f95f

13213232200031 has 4 divisors (see below), whose sum is σ = 13990481152992. Its totient is φ = 12435983247072.

The previous prime is 13213232200027. The next prime is 13213232200033. The reversal of 13213232200031 is 13000223231231.

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 13213232200031 - 22 = 13213232200027 is a prime.

It is a super-2 number, since 2×132132322000312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213232200033) 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, 388624476455 + ... + 388624476488.

It is an arithmetic number, because the mean of its divisors is an integer number (3497620288248).

Almost surely, 213213232200031 is an apocalyptic number.

13213232200031 is a deficient number, since it is larger than the sum of its proper divisors (777248952961).

13213232200031 is an equidigital number, since it uses as much as digits as its factorization.

13213232200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777248952960.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13213232200031 its reverse (13000223231231), we get a palindrome (26213455431262).

The spelling of 13213232200031 in words is "thirteen trillion, two hundred thirteen billion, two hundred thirty-two million, two hundred thousand, thirty-one".

Divisors: 1 17 777248952943 13213232200031