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23002233121 = 724001117329
BaseRepresentation
bin10101011011000010…
…100011100100100001
32012101001202111212001
4111123002203210201
5334102032424441
614322253404001
71443005520100
oct253302434441
965331674761
1023002233121
11983418521a
12455b499601
13222769173a
141182d10037
158e9601731
hex55b0a3921

23002233121 has 12 divisors (see below), whose sum is σ = 26764615620. Its totient is φ = 19711104000.

The previous prime is 23002233109. The next prime is 23002233173. The reversal of 23002233121 is 12133220032.

It can be written as a sum of positive squares in 2 ways, for example, as 715027600 + 22287205521 = 26740^2 + 149289^2 .

It is not a de Polignac number, because 23002233121 - 211 = 23002231073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23002233101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137385 + ... + 254713.

It is an arithmetic number, because the mean of its divisors is an integer number (2230384635).

Almost surely, 223002233121 is an apocalyptic number.

It is an amenable number.

23002233121 is a deficient number, since it is larger than the sum of its proper divisors (3762382499).

23002233121 is a wasteful number, since it uses less digits than its factorization.

23002233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121344 (or 121337 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23002233121 its reverse (12133220032), we get a palindrome (35135453153).

The spelling of 23002233121 in words is "twenty-three billion, two million, two hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 7 49 4001 28007 117329 196049 821303 5749121 469433329 3286033303 23002233121