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2122310423 = 2309919147
BaseRepresentation
bin111111001111111…
…1110001100010111
312110220111112120202
41332133332030113
513321302413143
6550332251115
7103410224642
oct17637761427
95426445522
102122310423
11999a97262
124b2910a9b
1327a8ccaac
14161c16a59
15c64c2ab8
hex7e7fe317

2122310423 has 4 divisors (see below), whose sum is σ = 2123231880. Its totient is φ = 2121388968.

The previous prime is 2122310389. The next prime is 2122310459. The reversal of 2122310423 is 3240132212.

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 2122310423 - 28 = 2122310167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122310395 and 2122310404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122310473) 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, 457265 + ... + 461882.

It is an arithmetic number, because the mean of its divisors is an integer number (530807970).

Almost surely, 22122310423 is an apocalyptic number.

2122310423 is a deficient number, since it is larger than the sum of its proper divisors (921457).

2122310423 is an equidigital number, since it uses as much as digits as its factorization.

2122310423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921456.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2122310423 is about 46068.5404913158. The cubic root of 2122310423 is about 1285.0981616383.

Adding to 2122310423 its reverse (3240132212), we get a palindrome (5362442635).

The spelling of 2122310423 in words is "two billion, one hundred twenty-two million, three hundred ten thousand, four hundred twenty-three".

Divisors: 1 2309 919147 2122310423