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13213013211 = 3243139245627
BaseRepresentation
bin11000100111000111…
…01001010011011011
31021002211121121122200
430103203221103123
5204030012410321
610023040421243
7645300521256
oct142343512333
937084547580
1013213013211
115670446432
122689017823
131327564218
148d4b7809d
15524ecbd26
hex3138e94db

13213013211 has 24 divisors (see below), whose sum is σ = 19669890240. Its totient is φ = 8541889776.

The previous prime is 13213013197. The next prime is 13213013257. The reversal of 13213013211 is 11231031231.

13213013211 is a `hidden beast` number, since 1 + 321 + 301 + 32 + 11 = 666.

It is not a de Polignac number, because 13213013211 - 214 = 13212996827 is a prime.

It is a super-2 number, since 2×132130132112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13213013291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69021 + ... + 176606.

It is an arithmetic number, because the mean of its divisors is an integer number (819578760).

Almost surely, 213213013211 is an apocalyptic number.

13213013211 is a deficient number, since it is larger than the sum of its proper divisors (6456877029).

13213013211 is a wasteful number, since it uses less digits than its factorization.

13213013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245815 (or 245812 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13213013211 its reverse (11231031231), we get a palindrome (24444044442).

The spelling of 13213013211 in words is "thirteen billion, two hundred thirteen million, thirteen thousand, two hundred eleven".

Divisors: 1 3 9 43 129 139 387 417 1251 5977 17931 53793 245627 736881 2210643 10561961 31685883 34142153 95057649 102426459 307279377 1468112579 4404337737 13213013211