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23130210013 = 171360600589
BaseRepresentation
bin10101100010101010…
…101111111011011101
32012200222120102010221
4111202222233323131
5334332313210023
614343104401341
71446121353421
oct254252577335
965628512127
1023130210013
11989a445149
124596316251
13224804c401
141195d04b81
1590598085d
hex562aafedd

23130210013 has 4 divisors (see below), whose sum is σ = 24490810620. Its totient is φ = 21769609408.

The previous prime is 23130209959. The next prime is 23130210113. The reversal of 23130210013 is 31001203132.

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 10103868324 + 13026341689 = 100518^2 + 114133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23130210013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130210113) 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, 680300278 + ... + 680300311.

It is an arithmetic number, because the mean of its divisors is an integer number (6122702655).

Almost surely, 223130210013 is an apocalyptic number.

It is an amenable number.

23130210013 is a deficient number, since it is larger than the sum of its proper divisors (1360600607).

23130210013 is a wasteful number, since it uses less digits than its factorization.

23130210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360600606.

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

Adding to 23130210013 its reverse (31001203132), we get a palindrome (54131413145).

The spelling of 23130210013 in words is "twenty-three billion, one hundred thirty million, two hundred ten thousand, thirteen".

Divisors: 1 17 1360600589 23130210013