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23894401 = 172322657
BaseRepresentation
bin101101100100…
…1100110000001
31122221221221211
41123021212001
522104110101
62212050121
7410045656
oct133114601
948857854
1023894401
1112540243
128003941
134c47bcb
14325dc2d
15216ec51
hex16c9981

23894401 has 12 divisors (see below), whose sum is σ = 26457732. Its totient is φ = 21502976.

The previous prime is 23894399. The next prime is 23894407. The reversal of 23894401 is 10449832.

It can be written as a sum of positive squares in 2 ways, for example, as 17139600 + 6754801 = 4140^2 + 2599^2 .

It is not a de Polignac number, because 23894401 - 21 = 23894399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23894407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7665 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (2204811).

Almost surely, 223894401 is an apocalyptic number.

It is an amenable number.

23894401 is a deficient number, since it is larger than the sum of its proper divisors (2563331).

23894401 is a wasteful number, since it uses less digits than its factorization.

23894401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2697 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 23894401 is about 4888.1899513010. The cubic root of 23894401 is about 288.0262361965.

The spelling of 23894401 in words is "twenty-three million, eight hundred ninety-four thousand, four hundred one".

Divisors: 1 17 23 391 529 2657 8993 45169 61111 1038887 1405553 23894401