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213211311302 = 211149149943391
BaseRepresentation
bin1100011010010001100…
…0100110110011000110
3202101100001200211120102
43012210120212303012
511443124043430202
6241540430204102
721255401146403
oct3064430466306
9671301624512
10213211311302
11824712549a0
12353a4053632
131714b408842
14a4689352aa
15582d216d02
hex31a4626cc6

213211311302 has 32 divisors (see below), whose sum is σ = 351475200000. Its totient is φ = 96197365600.

The previous prime is 213211311251. The next prime is 213211311317. The reversal of 213211311302 is 203113112312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4892027 + ... + 4935417.

It is an arithmetic number, because the mean of its divisors is an integer number (10983600000).

Almost surely, 2213211311302 is an apocalyptic number.

213211311302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213211311302 is a deficient number, since it is larger than the sum of its proper divisors (138263888698).

213211311302 is a wasteful number, since it uses less digits than its factorization.

213211311302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45052.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213211311302 its reverse (203113112312), we get a palindrome (416324423614).

The spelling of 213211311302 in words is "two hundred thirteen billion, two hundred eleven million, three hundred eleven thousand, three hundred two".

Divisors: 1 2 11 22 149 298 1499 1639 2998 3278 16489 32978 43391 86782 223351 446702 477301 954602 2456861 4913722 6465259 12930518 65043109 71117849 130086218 142235698 715474199 1430948398 9691423241 19382846482 106605655651 213211311302