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22013210232231 = 317431631573181
BaseRepresentation
bin1010000000101010110011…
…00100111000010110100111
32212221102221110200200111020
411000111121210320112213
510341131023304412411
6114452421300142223
74431254604446361
oct500253144702647
985842843620436
1022013210232231
117017828324919
122576383697973
13c38ab564756a
1456163335dd31
15282932991606
hex1405599385a7

22013210232231 has 8 divisors (see below), whose sum is σ = 31077473269104. Its totient is φ = 13812210341760.

The previous prime is 22013210232157. The next prime is 22013210232241. The reversal of 22013210232231 is 13223201231022.

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

It is not a de Polignac number, because 22013210232231 - 27 = 22013210232103 is a prime.

It is a super-2 number, since 2×220132102322312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013210232241) 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, 215815786540 + ... + 215815786641.

It is an arithmetic number, because the mean of its divisors is an integer number (3884684158638).

Almost surely, 222013210232231 is an apocalyptic number.

22013210232231 is a deficient number, since it is larger than the sum of its proper divisors (9064263036873).

22013210232231 is a wasteful number, since it uses less digits than its factorization.

22013210232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431631573201.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22013210232231 its reverse (13223201231022), we get a palindrome (35236411463253).

The spelling of 22013210232231 in words is "twenty-two trillion, thirteen billion, two hundred ten million, two hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 17 51 431631573181 1294894719543 7337736744077 22013210232231