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3122121212213 = 23878315455357
BaseRepresentation
bin101101011011101100111…
…011010000000100110101
3102001110201222212122001212
4231123230323100010311
5402123101012242323
610350141020531205
7441365034301463
oct55335473200465
912043658778055
103122121212213
11aa40a2037a43
124251080b0b05
13198551321213
14ab17bc4b833
1556330a51b78
hex2d6eced0135

3122121212213 has 8 divisors (see below), whose sum is σ = 3258236752128. Its totient is φ = 2986036600624.

The previous prime is 3122121212207. The next prime is 3122121212227.

3122121212213 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 3122121212213 - 26 = 3122121212149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122121214213) 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, 7525670 + ... + 7929687.

It is an arithmetic number, because the mean of its divisors is an integer number (407279594016).

Almost surely, 23122121212213 is an apocalyptic number.

It is an amenable number.

3122121212213 is a deficient number, since it is larger than the sum of its proper divisors (136115539915).

3122121212213 is a wasteful number, since it uses less digits than its factorization.

3122121212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15464163.

The product of its digits is 576, while the sum is 23.

The spelling of 3122121212213 in words is "three trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 23 8783 202009 15455357 355473211 135744400531 3122121212213