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23882137 = 29381509
BaseRepresentation
bin101101100011…
…0100110011001
31122221100010121
41123012212121
522103212022
62211513241
7406665136
oct133064631
948840117
1023882137
1112532004
127bb8821
134c42456
14325958d
15216b2c7
hex16c6999

23882137 has 4 divisors (see below), whose sum is σ = 23963940. Its totient is φ = 23800336.

The previous prime is 23882101. The next prime is 23882147. The reversal of 23882137 is 73128832.

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 21123216 + 2758921 = 4596^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 23882137 - 223 = 15493529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23882147) 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, 40462 + ... + 41047.

It is an arithmetic number, because the mean of its divisors is an integer number (5990985).

Almost surely, 223882137 is an apocalyptic number.

It is an amenable number.

23882137 is a deficient number, since it is larger than the sum of its proper divisors (81803).

23882137 is an equidigital number, since it uses as much as digits as its factorization.

23882137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81802.

The product of its digits is 16128, while the sum is 34.

The square root of 23882137 is about 4886.9353382258. The cubic root of 23882137 is about 287.9769504766.

The spelling of 23882137 in words is "twenty-three million, eight hundred eighty-two thousand, one hundred thirty-seven".

Divisors: 1 293 81509 23882137