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23231231033 = 376112781047
BaseRepresentation
bin10101101000101100…
…000111010000111001
32012222000122210221012
4111220230013100321
5340034143343113
614401113523305
71451456130353
oct255054072071
965860583835
1023231231033
11994147379a
124604113535
132262c5c86a
1411a54c00d3
1590e787aa8
hex568b07439

23231231033 has 16 divisors (see below), whose sum is σ = 24441483264. Its totient is φ = 22057479360.

The previous prime is 23231231021. The next prime is 23231231053. The reversal of 23231231033 is 33013213232.

It is a cyclic number.

It is not a de Polignac number, because 23231231033 - 218 = 23230968889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231231053) 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, 246116 + ... + 327162.

It is an arithmetic number, because the mean of its divisors is an integer number (1527592704).

Almost surely, 223231231033 is an apocalyptic number.

It is an amenable number.

23231231033 is a deficient number, since it is larger than the sum of its proper divisors (1210252231).

23231231033 is a wasteful number, since it uses less digits than its factorization.

23231231033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81272.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23231231033 its reverse (33013213232), we get a palindrome (56244444265).

The spelling of 23231231033 in words is "twenty-three billion, two hundred thirty-one million, two hundred thirty-one thousand, thirty-three".

Divisors: 1 37 61 127 2257 4699 7747 81047 286639 2998739 4943867 10292969 182923079 380839853 627871109 23231231033