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23013300221 = 64735569243
BaseRepresentation
bin10101011011101100…
…110001011111111101
32012101211120210001122
4111123230301133331
5334112401101341
614323330520325
71443201552512
oct253354613775
965354523048
1023013300221
11983a45408a
1245631360a5
132229a67c12
141184591309
158ea58a94b
hex55bb317fd

23013300221 has 4 divisors (see below), whose sum is σ = 23048870112. Its totient is φ = 22977730332.

The previous prime is 23013300203. The next prime is 23013300259. The reversal of 23013300221 is 12200331032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23013300221 - 214 = 23013283837 is a prime.

It is a super-2 number, since 2×230133002212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23013300221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013300421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17783975 + ... + 17785268.

It is an arithmetic number, because the mean of its divisors is an integer number (5762217528).

Almost surely, 223013300221 is an apocalyptic number.

It is an amenable number.

23013300221 is a deficient number, since it is larger than the sum of its proper divisors (35569891).

23013300221 is an equidigital number, since it uses as much as digits as its factorization.

23013300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35569890.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23013300221 its reverse (12200331032), we get a palindrome (35213631253).

The spelling of 23013300221 in words is "twenty-three billion, thirteen million, three hundred thousand, two hundred twenty-one".

Divisors: 1 647 35569243 23013300221