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23220311310013 = 315342133569771
BaseRepresentation
bin1010100011110011001100…
…11010000011111010111101
310001012211200102022220220111
411101321212122003322331
511020420144143410023
6121215132545350021
74614416650353166
oct521714632037275
9101184612286814
1023220311310013
117442751422834
122730303338311
13cc588716842c
145a3c249d676d
152a4030cb000d
hex151e66683ebd

23220311310013 has 16 divisors (see below), whose sum is σ = 24479614858752. Its totient is φ = 21994913304000.

The previous prime is 23220311309989. The next prime is 23220311310017. The reversal of 23220311310013 is 31001311302232.

It is a cyclic number.

It is not a de Polignac number, because 23220311310013 - 217 = 23220311178941 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 (23220311310017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16093183 + ... + 17476588.

It is an arithmetic number, because the mean of its divisors is an integer number (1529975928672).

Almost surely, 223220311310013 is an apocalyptic number.

It is an amenable number.

23220311310013 is a deficient number, since it is larger than the sum of its proper divisors (1259303548739).

23220311310013 is a wasteful number, since it uses less digits than its factorization.

23220311310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33570276.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 23220311310013 its reverse (31001311302232), we get a palindrome (54221622612245).

The spelling of 23220311310013 in words is "twenty-three trillion, two hundred twenty billion, three hundred eleven million, three hundred ten thousand, thirteen".

Divisors: 1 31 53 421 1643 13051 22313 691703 33569771 1040662901 1779197863 14132873591 55155133753 438119081321 749042300323 23220311310013