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23115104 = 251742491
BaseRepresentation
bin101100000101…
…1010101100000
31121111100221222
41120023111200
521404140404
62143234212
7400321655
oct130132540
947440858
1023115104
11120587a1
1278a8968
134a3429c
1430d9c2c
152068dbe
hex160b560

23115104 has 24 divisors (see below), whose sum is σ = 48185928. Its totient is φ = 10877440.

The previous prime is 23115097. The next prime is 23115109. The reversal of 23115104 is 40151132.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115109) 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, 20702 + ... + 21789.

It is an arithmetic number, because the mean of its divisors is an integer number (2007747).

Almost surely, 223115104 is an apocalyptic number.

It is an amenable number.

23115104 is an abundant number, since it is smaller than the sum of its proper divisors (25070824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23115104 is a wasteful number, since it uses less digits than its factorization.

23115104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42518 (or 42510 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 23115104 is about 4807.8169682300. The cubic root of 23115104 is about 284.8603152564.

Adding to 23115104 its reverse (40151132), we get a palindrome (63266236).

The spelling of 23115104 in words is "twenty-three million, one hundred fifteen thousand, one hundred four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 42491 84982 169964 339928 679856 722347 1359712 1444694 2889388 5778776 11557552 23115104