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2213001213 = 3737667071
BaseRepresentation
bin1000001111100111…
…1011011111111101
312201020011002221220
42003321323133331
514013012014323
61003332143553
7105561125403
oct20371733775
95636132856
102213001213
11a361aa625
12519167bb9
13293634297
1416dca3473
15ce4390e3
hex83e7b7fd

2213001213 has 4 divisors (see below), whose sum is σ = 2950668288. Its totient is φ = 1475334140.

The previous prime is 2213001181. The next prime is 2213001229. The reversal of 2213001213 is 3121003122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2213001213 - 25 = 2213001181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2213001192 and 2213001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213001233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368833533 + ... + 368833538.

It is an arithmetic number, because the mean of its divisors is an integer number (737667072).

Almost surely, 22213001213 is an apocalyptic number.

It is an amenable number.

2213001213 is a deficient number, since it is larger than the sum of its proper divisors (737667075).

2213001213 is an equidigital number, since it uses as much as digits as its factorization.

2213001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737667074.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2213001213 is about 47042.5468379424. The cubic root of 2213001213 is about 1303.1484265662.

Adding to 2213001213 its reverse (3121003122), we get a palindrome (5334004335).

The spelling of 2213001213 in words is "two billion, two hundred thirteen million, one thousand, two hundred thirteen".

Divisors: 1 3 737667071 2213001213