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2122713223 = 11383186481
BaseRepresentation
bin111111010000110…
…0000100010000111
312110221021000010021
41332201200202013
513321403310343
6550345040011
7103413523201
oct17641404207
95427230107
102122713223
1199a241954
124b2a86007
1327aa11237
14161cbd771
15c65520ed
hex7e860887

2122713223 has 4 divisors (see below), whose sum is σ = 2122911088. Its totient is φ = 2122515360.

The previous prime is 2122713221. The next prime is 2122713227. The reversal of 2122713223 is 3223172212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122713223 - 21 = 2122713221 is a prime.

It is a super-2 number, since 2×21227132232 = 9011822854198095458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122713221) 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, 81858 + ... + 104623.

It is an arithmetic number, because the mean of its divisors is an integer number (530727772).

Almost surely, 22122713223 is an apocalyptic number.

2122713223 is a deficient number, since it is larger than the sum of its proper divisors (197865).

2122713223 is a wasteful number, since it uses less digits than its factorization.

2122713223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197864.

The product of its digits is 2016, while the sum is 25.

The square root of 2122713223 is about 46072.9120308235. The cubic root of 2122713223 is about 1285.1794574420.

Adding to 2122713223 its reverse (3223172212), we get a palindrome (5345885435).

The spelling of 2122713223 in words is "two billion, one hundred twenty-two million, seven hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 11383 186481 2122713223