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23495287 = 97124197
BaseRepresentation
bin101100110100…
…0001001110111
31122012200110211
41121220021313
522003322122
62155330251
7403464244
oct131501167
948180424
1023495287
11122983a2
127a50987
134b3834a
1431985cb
1520e1877
hex1668277

23495287 has 4 divisors (see below), whose sum is σ = 23520456. Its totient is φ = 23470120.

The previous prime is 23495281. The next prime is 23495293. The reversal of 23495287 is 78259432.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23495281) and next prime (23495293).

It is a cyclic number.

It is not a de Polignac number, because 23495287 - 23 = 23495279 is a prime.

It is a super-2 number, since 2×234952872 = 1104057022424738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23495281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11128 + ... + 13069.

It is an arithmetic number, because the mean of its divisors is an integer number (5880114).

Almost surely, 223495287 is an apocalyptic number.

23495287 is a deficient number, since it is larger than the sum of its proper divisors (25169).

23495287 is an equidigital number, since it uses as much as digits as its factorization.

23495287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25168.

The product of its digits is 120960, while the sum is 40.

The square root of 23495287 is about 4847.1937242079. The cubic root of 23495287 is about 286.4135661871.

The spelling of 23495287 in words is "twenty-three million, four hundred ninety-five thousand, two hundred eighty-seven".

Divisors: 1 971 24197 23495287