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23031301223 = 729571112677
BaseRepresentation
bin10101011100110001…
…011100010001100111
32012110002110022210102
4111130301130101213
5334132003114343
614325212414315
71443510554540
oct253461342147
965402408712
1023031301223
119849629547
12456917739b
1322306cb4b8
141186b194c7
158ebe443b8
hex55cc5c467

23031301223 has 8 divisors (see below), whose sum is σ = 26330412192. Its totient is φ = 19734421536.

The previous prime is 23031301219. The next prime is 23031301273. The reversal of 23031301223 is 32210313032.

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

It is a cyclic number.

It is not a de Polignac number, because 23031301223 - 22 = 23031301219 is a prime.

It is a super-2 number, since 2×230313012232 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23031301195 and 23031301204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031301273) 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, 535640 + ... + 577037.

It is an arithmetic number, because the mean of its divisors is an integer number (3291301524).

Almost surely, 223031301223 is an apocalyptic number.

23031301223 is a deficient number, since it is larger than the sum of its proper divisors (3299110969).

23031301223 is a wasteful number, since it uses less digits than its factorization.

23031301223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115641.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23031301223 its reverse (32210313032), we get a palindrome (55241614255).

The spelling of 23031301223 in words is "twenty-three billion, thirty-one million, three hundred one thousand, two hundred twenty-three".

Divisors: 1 7 2957 20699 1112677 7788739 3290185889 23031301223