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23415013 = 312572939
BaseRepresentation
bin101100101010…
…0100011100101
31122001121100201
41121110203211
521443240023
62153510501
7403011226
oct131244345
948047321
1023415013
1112243056
127a12431
134b0a94b
14317724d
1520c7bad
hex16548e5

23415013 has 8 divisors (see below), whose sum is σ = 24272640. Its totient is φ = 22563840.

The previous prime is 23414987. The next prime is 23415017. The reversal of 23415013 is 31051432.

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

It is a cyclic number.

It is not a de Polignac number, because 23415013 - 25 = 23414981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23415017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6498 + ... + 9436.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 223415013 is an apocalyptic number.

It is an amenable number.

23415013 is a deficient number, since it is larger than the sum of its proper divisors (857627).

23415013 is a wasteful number, since it uses less digits than its factorization.

23415013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23415013 is about 4838.9061780531. The cubic root of 23415013 is about 286.0870071237.

Adding to 23415013 its reverse (31051432), we get a palindrome (54466445).

The spelling of 23415013 in words is "twenty-three million, four hundred fifteen thousand, thirteen".

Divisors: 1 31 257 2939 7967 91109 755323 23415013