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23824161 = 3216272
BaseRepresentation
bin101101011100…
…0011100100001
31122211101121100
41122320130201
522044333121
62210345013
7406334124
oct132703441
948741540
1023824161
11124a2499
127b8b169
134c21c4a
1432423bb
152159026
hex16b8721

23824161 has 9 divisors (see below), whose sum is σ = 34433841. Its totient is φ = 15873012.

The previous prime is 23824153. The next prime is 23824181. The reversal of 23824161 is 16142832.

The square root of 23824161 is 4881.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 23824161 - 23 = 23824153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23824111) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13830 + ... + 15456.

Almost surely, 223824161 is an apocalyptic number.

23824161 is the 4881-st square number.

23824161 is the 2441-st centered octagonal number.

It is an amenable number.

23824161 is a deficient number, since it is larger than the sum of its proper divisors (10609680).

23824161 is an frugal number, since it uses more digits than its factorization.

23824161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 1630 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The cubic root of 23824161 is about 287.7437318152.

Multiplying 23824161 by its product of digits (2304), we get a square (54890866944 = 2342882).

Adding to 23824161 its reverse (16142832), we get a palindrome (39966993).

The spelling of 23824161 in words is "twenty-three million, eight hundred twenty-four thousand, one hundred sixty-one".

Divisors: 1 3 9 1627 4881 14643 2647129 7941387 23824161