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213211222203 = 3710152915343
BaseRepresentation
bin1100011010010001100…
…0010001000010111011
3202101100001112022100110
43012210120101002323
511443124033102303
6241540424235403
721255400325550
oct3064430210273
9671301468313
10213211222203
11824711a3a61
12353a400bb63
131714b3a7115
14a468910a27
15582d1ea703
hex31a46110bb

213211222203 has 8 divisors (see below), whose sum is σ = 324893291008. Its totient is φ = 121834984104.

The previous prime is 213211222171. The next prime is 213211222247. The reversal of 213211222203 is 302222112312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213211222203 - 25 = 213211222171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10152915343 = 213211222203 / (2 + 1 + 3 + 2 + 1 + 1 + 2 + 2 + 2 + 2 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213211222203.

It is not an unprimeable number, because it can be changed into a prime (213211221203) 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, 5076457651 + ... + 5076457692.

It is an arithmetic number, because the mean of its divisors is an integer number (40611661376).

Almost surely, 2213211222203 is an apocalyptic number.

213211222203 is a deficient number, since it is larger than the sum of its proper divisors (111682068805).

213211222203 is a wasteful number, since it uses less digits than its factorization.

213211222203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152915353.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213211222203 its reverse (302222112312), we get a palindrome (515433334515).

The spelling of 213211222203 in words is "two hundred thirteen billion, two hundred eleven million, two hundred twenty-two thousand, two hundred three".

Divisors: 1 3 7 21 10152915343 30458746029 71070407401 213211222203