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23613161 = 1113612707
BaseRepresentation
bin101101000010…
…0111011101001
31122102200011112
41122010323221
522021110121
62202040105
7404465015
oct132047351
948380145
1023613161
1112368a10
127aa9035
134b79bb0
1431c9545
15211675b
hex1684ee9

23613161 has 16 divisors (see below), whose sum is σ = 28206528. Its totient is φ = 19483200.

The previous prime is 23613137. The next prime is 23613193. The reversal of 23613161 is 16131632.

It is a happy number.

It is not a de Polignac number, because 23613161 - 26 = 23613097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23613131) 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 15 ways as a sum of consecutive naturals, for example, 7370 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (1762908).

Almost surely, 223613161 is an apocalyptic number.

It is an amenable number.

23613161 is a deficient number, since it is larger than the sum of its proper divisors (4593367).

23613161 is a wasteful number, since it uses less digits than its factorization.

23613161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792.

The product of its digits is 648, while the sum is 23.

The square root of 23613161 is about 4859.3375062862. The cubic root of 23613161 is about 286.8917388416.

Adding to 23613161 its reverse (16131632), we get a palindrome (39744793).

It can be divided in two parts, 2 and 3613161, that added together give a palindrome (3613163).

The spelling of 23613161 in words is "twenty-three million, six hundred thirteen thousand, one hundred sixty-one".

Divisors: 1 11 13 61 143 671 793 2707 8723 29777 35191 165127 387101 1816397 2146651 23613161