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23120031233 = 133748066593
BaseRepresentation
bin10101100010000011…
…111010111000000001
32012200021102021111002
4111202003322320001
5334322211444413
614342102301345
71445636010605
oct254203727001
965607367432
1023120031233
119894722732
124592a27855
132245bc7370
141194815505
15904b1e958
hex5620fae01

23120031233 has 8 divisors (see below), whose sum is σ = 25571428008. Its totient is φ = 20764767744.

The previous prime is 23120031191. The next prime is 23120031317. The reversal of 23120031233 is 33213002132.

It can be written as a sum of positive squares in 4 ways, for example, as 7007029264 + 16113001969 = 83708^2 + 126937^2 .

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 23120031233 - 26 = 23120031169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120037233) 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, 24032816 + ... + 24033777.

It is an arithmetic number, because the mean of its divisors is an integer number (3196428501).

Almost surely, 223120031233 is an apocalyptic number.

It is an amenable number.

23120031233 is a deficient number, since it is larger than the sum of its proper divisors (2451396775).

23120031233 is a wasteful number, since it uses less digits than its factorization.

23120031233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48066643.

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

Adding to 23120031233 its reverse (33213002132), we get a palindrome (56333033365).

The spelling of 23120031233 in words is "twenty-three billion, one hundred twenty million, thirty-one thousand, two hundred thirty-three".

Divisors: 1 13 37 481 48066593 624865709 1778463941 23120031233