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23845117 is a prime number
BaseRepresentation
bin101101011110…
…1100011111101
31122212110100111
41122331203331
522101020432
62211030021
7406452202
oct132754375
948773314
1023845117
111250720a
127b9b311
134c2b64a
143249ca9
152160347
hex16bd8fd

23845117 has 2 divisors, whose sum is σ = 23845118. Its totient is φ = 23845116.

The previous prime is 23845111. The next prime is 23845141. The reversal of 23845117 is 71154832.

Adding to 23845117 its reverse (71154832), we get a palindrome (94999949).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 4713241 = 4374^2 + 2171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23845117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23845111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11922558 + 11922559.

It is an arithmetic number, because the mean of its divisors is an integer number (11922559).

Almost surely, 223845117 is an apocalyptic number.

It is an amenable number.

23845117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23845117 is an equidigital number, since it uses as much as digits as its factorization.

23845117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 23845117 is about 4883.1462193959. The cubic root of 23845117 is about 287.8280746314.

The spelling of 23845117 in words is "twenty-three million, eight hundred forty-five thousand, one hundred seventeen".