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22144502213 = 178712391999
BaseRepresentation
bin10100100111111010…
…100100100111000101
32010011021210021020122
4110213322210213011
5330322443032323
614101213311325
71412522106641
oct244772444705
963137707218
1022144502213
119433aa32a9
124360195545
13211ba77662
141101037c21
15899173ec8
hex527ea49c5

22144502213 has 4 divisors (see below), whose sum is σ = 22156896000. Its totient is φ = 22132108428.

The previous prime is 22144502113. The next prime is 22144502221. The reversal of 22144502213 is 31220544122.

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 22144502213 - 220 = 22143453637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144502293) 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, 6194213 + ... + 6197786.

It is an arithmetic number, because the mean of its divisors is an integer number (5539224000).

Almost surely, 222144502213 is an apocalyptic number.

It is an amenable number.

22144502213 is a deficient number, since it is larger than the sum of its proper divisors (12393787).

22144502213 is a wasteful number, since it uses less digits than its factorization.

22144502213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393786.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 22144502213 in words is "twenty-two billion, one hundred forty-four million, five hundred two thousand, two hundred thirteen".

Divisors: 1 1787 12391999 22144502213