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23104705 = 513355457
BaseRepresentation
bin101100000100…
…0110011000001
31121110211200211
41120020303001
521403322310
62143114121
7400246441
oct130106301
947424624
1023104705
11120509a8
1278a2941
134a2c630
1430d6121
152065c8a
hex1608cc1

23104705 has 8 divisors (see below), whose sum is σ = 29858472. Its totient is φ = 17061888.

The previous prime is 23104693. The next prime is 23104709. The reversal of 23104705 is 50740132.

It can be written as a sum of positive squares in 4 ways, for example, as 370881 + 22733824 = 609^2 + 4768^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23104705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23104709) 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, 177664 + ... + 177793.

It is an arithmetic number, because the mean of its divisors is an integer number (3732309).

Almost surely, 223104705 is an apocalyptic number.

It is an amenable number.

23104705 is a deficient number, since it is larger than the sum of its proper divisors (6753767).

23104705 is a wasteful number, since it uses less digits than its factorization.

23104705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355475.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 23104705 is about 4806.7353786120. The cubic root of 23104705 is about 284.8175912905.

Adding to 23104705 its reverse (50740132), we get a palindrome (73844837).

The spelling of 23104705 in words is "twenty-three million, one hundred four thousand, seven hundred five".

Divisors: 1 5 13 65 355457 1777285 4620941 23104705