Search a number
-
+
13233222212 = 2271727800887
BaseRepresentation
bin11000101001100001…
…01111001001000100
31021011020122100012012
430110300233021010
5204100201102322
610025041513352
7645634350530
oct142460571104
937136570165
1013233222212
115680899791
122693942858
13132b7bb802
148d7718bc0
15526b6eae2
hex314c2f244

13233222212 has 24 divisors (see below), whose sum is σ = 28023295104. Its totient is φ = 5337770112.

The previous prime is 13233222199. The next prime is 13233222217. The reversal of 13233222212 is 21222233231.

It is a super-2 number, since 2×132332222122 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13233222217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13899968 + ... + 13900919.

It is an arithmetic number, because the mean of its divisors is an integer number (1167637296).

Almost surely, 213233222212 is an apocalyptic number.

It is an amenable number.

13233222212 is an abundant number, since it is smaller than the sum of its proper divisors (14790072892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13233222212 is a wasteful number, since it uses less digits than its factorization.

13233222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27800915 (or 27800913 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 13233222212 its reverse (21222233231), we get a palindrome (34455455443).

The spelling of 13233222212 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 27800887 55601774 111203548 194606209 389212418 472615079 778424836 945230158 1890460316 3308305553 6616611106 13233222212