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23500481 = 97242273
BaseRepresentation
bin101100110100…
…1011011000001
31122012221121012
41121221123001
522004003411
62155410305
7403515344
oct131513301
948187535
1023500481
11122a1294
127a53995
134b3a814
14319a45b
1520e318b
hex16696c1

23500481 has 4 divisors (see below), whose sum is σ = 23742852. Its totient is φ = 23258112.

The previous prime is 23500471. The next prime is 23500501. The reversal of 23500481 is 18400532.

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 3964081 + 19536400 = 1991^2 + 4420^2 .

It is a cyclic number.

It is not a de Polignac number, because 23500481 - 26 = 23500417 is a prime.

It is a super-2 number, since 2×235004812 = 1104545214462722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23500471) 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, 121040 + ... + 121233.

It is an arithmetic number, because the mean of its divisors is an integer number (5935713).

Almost surely, 223500481 is an apocalyptic number.

It is an amenable number.

23500481 is a deficient number, since it is larger than the sum of its proper divisors (242371).

23500481 is an equidigital number, since it uses as much as digits as its factorization.

23500481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242370.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23500481 is about 4847.7294685244. The cubic root of 23500481 is about 286.4346700289.

The spelling of 23500481 in words is "twenty-three million, five hundred thousand, four hundred eighty-one".

Divisors: 1 97 242273 23500481