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23914845 = 3145
BaseRepresentation
bin101101100111…
…0100101011101
31200000000000000
41123032211131
522110233340
62212324513
7410162403
oct133164535
950000000
1023914845
1112554639
128013739
134c542c6
143267473
152175d30
hex16ce95d

23914845 has 30 divisors (see below), whose sum is σ = 43046718. Its totient is φ = 12754584.

The previous prime is 23914843. The next prime is 23914861. The reversal of 23914845 is 54841932.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 4782969 = 4374^2 + 2187^2 .

It is not a de Polignac number, because 23914845 - 21 = 23914843 is a prime.

It is a super-2 number, since 2×239148452 = 1143839622748050, which contains 22 as substring.

Its product of digits (34560) is a multiple of the sum of its prime divisors (8).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23914843) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4782967 + ... + 4782971.

Almost surely, 223914845 is an apocalyptic number.

It is an amenable number.

23914845 is a deficient number, since it is larger than the sum of its proper divisors (19131873).

23914845 is an frugal number, since it uses more digits than its factorization.

23914845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 8 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 23914845 is about 4890.2806667920. The cubic root of 23914845 is about 288.1083576637.

The spelling of 23914845 in words is "twenty-three million, nine hundred fourteen thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 729 1215 2187 3645 6561 10935 19683 32805 59049 98415 177147 295245 531441 885735 1594323 2657205 4782969 7971615 23914845