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23485313 = 171381489
BaseRepresentation
bin101100110010…
…1101110000001
31122012011210102
41121211232001
522003012223
62155212145
7403423205
oct131455601
948164712
1023485313
1112290955
127a47055
134b33947
143194b05
1520dd928
hex1665b81

23485313 has 4 divisors (see below), whose sum is σ = 24866820. Its totient is φ = 22103808.

The previous prime is 23485303. The next prime is 23485327. The reversal of 23485313 is 31358432.

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 20502784 + 2982529 = 4528^2 + 1727^2 .

It is not a de Polignac number, because 23485313 - 28 = 23485057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23485303) 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, 690728 + ... + 690761.

It is an arithmetic number, because the mean of its divisors is an integer number (6216705).

Almost surely, 223485313 is an apocalyptic number.

It is an amenable number.

23485313 is a deficient number, since it is larger than the sum of its proper divisors (1381507).

23485313 is a wasteful number, since it uses less digits than its factorization.

23485313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381506.

The product of its digits is 8640, while the sum is 29.

The square root of 23485313 is about 4846.1647722710. The cubic root of 23485313 is about 286.3730319127.

The spelling of 23485313 in words is "twenty-three million, four hundred eighty-five thousand, three hundred thirteen".

Divisors: 1 17 1381489 23485313