Search a number
-
+
12102222013 = 75987733413
BaseRepresentation
bin10110100010101100…
…10100000010111101
31011020102110120120221
423101112110002331
5144241132101023
65320520341341
7605622122050
oct132126240275
934212416527
1012102222013
115150430582
122419014851
1311ab3a581b
1482b42aa97
154ac71385d
hex2d15940bd

12102222013 has 16 divisors (see below), whose sum is σ = 14081996160. Its totient is φ = 10185581376.

The previous prime is 12102221981. The next prime is 12102222017. The reversal of 12102222013 is 31022220121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12102222013 - 25 = 12102221981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102222017) 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, 345495 + ... + 378907.

It is an arithmetic number, because the mean of its divisors is an integer number (880124760).

Almost surely, 212102222013 is an apocalyptic number.

It is an amenable number.

12102222013 is a deficient number, since it is larger than the sum of its proper divisors (1979774147).

12102222013 is an equidigital number, since it uses as much as digits as its factorization.

12102222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34356.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12102222013 its reverse (31022220121), we get a palindrome (43124442134).

The spelling of 12102222013 in words is "twelve billion, one hundred two million, two hundred twenty-two thousand, thirteen".

Divisors: 1 7 59 413 877 6139 33413 51743 233891 362201 1971367 13799569 29303201 205122407 1728888859 12102222013