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23108210409 = 37702736803
BaseRepresentation
bin10101100001010110…
…110100111011101001
32012122110011201100210
4111201112310323221
5334311200213114
614341001051333
71445433355554
oct254126647351
965573151323
1023108210409
119888a89559
12458aa86b49
132243618aab
14119301969b
15903a87259
hex5615b4ee9

23108210409 has 4 divisors (see below), whose sum is σ = 30810947216. Its totient is φ = 15405473604.

The previous prime is 23108210407. The next prime is 23108210413. The reversal of 23108210409 is 90401280132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23108210409 - 21 = 23108210407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23108210401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3851368399 + ... + 3851368404.

It is an arithmetic number, because the mean of its divisors is an integer number (7702736804).

Almost surely, 223108210409 is an apocalyptic number.

It is an amenable number.

23108210409 is a deficient number, since it is larger than the sum of its proper divisors (7702736807).

23108210409 is an equidigital number, since it uses as much as digits as its factorization.

23108210409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702736806.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 23108210409 in words is "twenty-three billion, one hundred eight million, two hundred ten thousand, four hundred nine".

Divisors: 1 3 7702736803 23108210409