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13100302221 = 3171117229963
BaseRepresentation
bin11000011001101011…
…01011111110001101
31020210222112022020120
430030311223332031
5203312134132341
610003532535153
7642431505636
oct141465537615
936728468216
1013100302221
115612862a56
1226573214b9
13130a0bcc26
148c3bd888d
1551a166066
hex30cd6bf8d

13100302221 has 16 divisors (see below), whose sum is σ = 18511182144. Its totient is φ = 8212402944.

The previous prime is 13100302199. The next prime is 13100302253. The reversal of 13100302221 is 12220300131.

It is not a de Polignac number, because 13100302221 - 26 = 13100302157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13100302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100303221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58015 + ... + 171948.

It is an arithmetic number, because the mean of its divisors is an integer number (1156948884).

Almost surely, 213100302221 is an apocalyptic number.

It is an amenable number.

13100302221 is a deficient number, since it is larger than the sum of its proper divisors (5410879923).

13100302221 is a wasteful number, since it uses less digits than its factorization.

13100302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231100.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13100302221 its reverse (12220300131), we get a palindrome (25320602352).

The spelling of 13100302221 in words is "thirteen billion, one hundred million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 3 17 51 1117 3351 18989 56967 229963 689889 3909371 11728113 256868671 770606013 4366767407 13100302221