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23010021313 = 27783068669
BaseRepresentation
bin10101011011100000…
…010000111111000001
32012101121102012020121
4111123200100333001
5334111031140223
614323132340241
71443131645146
oct253340207701
965347365217
1023010021313
119838614644
124562014681
13222918a636
141183d7a3cd
158ea13e15d
hex55b810fc1

23010021313 has 4 divisors (see below), whose sum is σ = 23093090260. Its totient is φ = 22926952368.

The previous prime is 23010021263. The next prime is 23010021323. The reversal of 23010021313 is 31312001032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1360724544 + 21649296769 = 36888^2 + 147137^2 .

It is a cyclic number.

It is not a de Polignac number, because 23010021313 - 213 = 23010013121 is a prime.

It is a super-2 number, since 2×230100213132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23010021323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41534058 + ... + 41534611.

It is an arithmetic number, because the mean of its divisors is an integer number (5773272565).

Almost surely, 223010021313 is an apocalyptic number.

It is an amenable number.

23010021313 is a deficient number, since it is larger than the sum of its proper divisors (83068947).

23010021313 is an equidigital number, since it uses as much as digits as its factorization.

23010021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83068946.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23010021313 its reverse (31312001032), we get a palindrome (54322022345).

The spelling of 23010021313 in words is "twenty-three billion, ten million, twenty-one thousand, three hundred thirteen".

Divisors: 1 277 83068669 23010021313