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23131322302 = 2111051423741
BaseRepresentation
bin10101100010101110…
…111111011110111110
32012201001122220220211
4111202232333132332
5334333104303202
614343144303034
71446133665304
oct254256773676
965631586824
1023131322302
1198a00348a0
124596771a7a
13224834b77a
141196114274
15905b001d7
hex562bbf7be

23131322302 has 8 divisors (see below), whose sum is σ = 37851254712. Its totient is φ = 10514237400.

The previous prime is 23131322281. The next prime is 23131322309. The reversal of 23131322302 is 20322313132.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1051423741 = 23131322302 / (2 + 3 + 1 + 3 + 1 + 3 + 2 + 2 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131322309) 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, 525711849 + ... + 525711892.

It is an arithmetic number, because the mean of its divisors is an integer number (4731406839).

Almost surely, 223131322302 is an apocalyptic number.

23131322302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23131322302 is a deficient number, since it is larger than the sum of its proper divisors (14719932410).

23131322302 is a wasteful number, since it uses less digits than its factorization.

23131322302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051423754.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23131322302 its reverse (20322313132), we get a palindrome (43453635434).

The spelling of 23131322302 in words is "twenty-three billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred two".

Divisors: 1 2 11 22 1051423741 2102847482 11565661151 23131322302