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23105115105 = 351540341007
BaseRepresentation
bin10101100001001011…
…000001001111100001
32012122020100110101220
4111201023001033201
5334304402140410
614340410445253
71445365144422
oct254113011741
965566313356
1023105115105
119887264a56
124589a33829
132242aa3c57
141192851649
15903675070
hex5612c13e1

23105115105 has 8 divisors (see below), whose sum is σ = 36968184192. Its totient is φ = 12322728048.

The previous prime is 23105115073. The next prime is 23105115107. The reversal of 23105115105 is 50151150132.

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

It is not a de Polignac number, because 23105115105 - 25 = 23105115073 is a prime.

It is a super-2 number, since 2×231051151052 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23105115107) 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, 770170489 + ... + 770170518.

It is an arithmetic number, because the mean of its divisors is an integer number (4621023024).

Almost surely, 223105115105 is an apocalyptic number.

It is an amenable number.

23105115105 is a deficient number, since it is larger than the sum of its proper divisors (13863069087).

23105115105 is a wasteful number, since it uses less digits than its factorization.

23105115105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540341015.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 23105115105 its reverse (50151150132), we get a palindrome (73256265237).

The spelling of 23105115105 in words is "twenty-three billion, one hundred five million, one hundred fifteen thousand, one hundred five".

Divisors: 1 3 5 15 1540341007 4621023021 7701705035 23105115105