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23845137 = 371111949
BaseRepresentation
bin101101011110…
…1100100010001
31122212110101020
41122331210101
522101021022
62211030053
7406452231
oct132754421
948773336
1023845137
1112507228
127b9b329
134c2b664
143249cc1
15216035c
hex16bd911

23845137 has 8 divisors (see below), whose sum is σ = 32241600. Its totient is φ = 15672720.

The previous prime is 23845117. The next prime is 23845141. The reversal of 23845137 is 73154832.

Adding to 23845137 its reverse (73154832), we get a palindrome (96999969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23845137 - 27 = 23845009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23845098 and 23845107.

It is not an unprimeable number, because it can be changed into a prime (23845117) 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 7 ways as a sum of consecutive naturals, for example, 55762 + ... + 56187.

It is an arithmetic number, because the mean of its divisors is an integer number (4030200).

Almost surely, 223845137 is an apocalyptic number.

It is an amenable number.

23845137 is a deficient number, since it is larger than the sum of its proper divisors (8396463).

23845137 is a wasteful number, since it uses less digits than its factorization.

23845137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112023.

The product of its digits is 20160, while the sum is 33.

The square root of 23845137 is about 4883.1482672555. The cubic root of 23845137 is about 287.8281551029.

The spelling of 23845137 in words is "twenty-three million, eight hundred forty-five thousand, one hundred thirty-seven".

Divisors: 1 3 71 213 111949 335847 7948379 23845137