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213231202132 = 221320443200587
BaseRepresentation
bin1100011010010110010…
…0011110111101010100
3202101101110010101122211
43012211210132331110
511443144141432012
6241542420403204
721256032212224
oct3064544367524
9671343111584
10213231202132
11824815001a3
12353aa846504
1317152581370
14a46b432084
15582ed456a7
hex31a591ef54

213231202132 has 24 divisors (see below), whose sum is σ = 401880465056. Its totient is φ = 98409096288.

The previous prime is 213231202127. The next prime is 213231202193. The reversal of 213231202132 is 231202132312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962743 + ... + 1163329.

Almost surely, 2213231202132 is an apocalyptic number.

It is an amenable number.

213231202132 is a deficient number, since it is larger than the sum of its proper divisors (188649262924).

213231202132 is a wasteful number, since it uses less digits than its factorization.

213231202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221047 (or 221045 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213231202132 its reverse (231202132312), we get a palindrome (444433334444).

The spelling of 213231202132 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred two thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 52 20443 40886 81772 200587 265759 401174 531518 802348 1063036 2607631 5215262 10430524 4100600041 8201200082 16402400164 53307800533 106615601066 213231202132