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23948605 = 54789721
BaseRepresentation
bin101101101011…
…0110100111101
31200001201022101
41123112310331
522112323410
62213145101
7410363002
oct133266475
950051271
1023948605
1112577a3a
12802b191
134c66795
1432758a9
152180d3a
hex16d6d3d

23948605 has 4 divisors (see below), whose sum is σ = 28738332. Its totient is φ = 19158880.

The previous prime is 23948593. The next prime is 23948609. The reversal of 23948605 is 50684932.

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 11431161 + 12517444 = 3381^2 + 3538^2 .

It is a de Polignac number, because none of the positive numbers 2k-23948605 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 (23948609) 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, 2394856 + ... + 2394865.

It is an arithmetic number, because the mean of its divisors is an integer number (7184583).

Almost surely, 223948605 is an apocalyptic number.

It is an amenable number.

23948605 is a deficient number, since it is larger than the sum of its proper divisors (4789727).

23948605 is an equidigital number, since it uses as much as digits as its factorization.

23948605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789726.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 23948605 is about 4893.7311940890. The cubic root of 23948605 is about 288.2438657527.

The spelling of 23948605 in words is "twenty-three million, nine hundred forty-eight thousand, six hundred five".

Divisors: 1 5 4789721 23948605