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13100212231 = 34737752773
BaseRepresentation
bin11000011001101010…
…10110000000000111
31020210222100201210121
430030311112000013
5203312123242411
610003531002411
7642430652401
oct141465260007
936728321717
1013100212231
115612801387
122657299407
13130a08ac92
148c3bb3b71
1551a149571
hex30cd56007

13100212231 has 4 divisors (see below), whose sum is σ = 13137965352. Its totient is φ = 13062459112.

The previous prime is 13100212187. The next prime is 13100212241. The reversal of 13100212231 is 13221200131.

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-13100212231 is a prime.

It is a super-2 number, since 2×131002122312 (a number of 21 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 (13100212241) 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, 18876040 + ... + 18876733.

It is an arithmetic number, because the mean of its divisors is an integer number (3284491338).

Almost surely, 213100212231 is an apocalyptic number.

13100212231 is a deficient number, since it is larger than the sum of its proper divisors (37753121).

13100212231 is an equidigital number, since it uses as much as digits as its factorization.

13100212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37753120.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13100212231 its reverse (13221200131), we get a palindrome (26321412362).

The spelling of 13100212231 in words is "thirteen billion, one hundred million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 347 37752773 13100212231