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23105051 = 79292469
BaseRepresentation
bin101100000100…
…0111000011011
31121110212011122
41120020320123
521403330201
62143115455
7400250444
oct130107033
947425148
1023105051
1112051192
1278a2b8b
134a2c838
1430d62cb
152065e1b
hex1608e1b

23105051 has 4 divisors (see below), whose sum is σ = 23397600. Its totient is φ = 22812504.

The previous prime is 23105039. The next prime is 23105053. The reversal of 23105051 is 15050132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23105051 - 210 = 23104027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23105053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146156 + ... + 146313.

It is an arithmetic number, because the mean of its divisors is an integer number (5849400).

Almost surely, 223105051 is an apocalyptic number.

23105051 is a deficient number, since it is larger than the sum of its proper divisors (292549).

23105051 is an equidigital number, since it uses as much as digits as its factorization.

23105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292548.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 23105051 is about 4806.7713696410. The cubic root of 23105051 is about 284.8190130268.

Adding to 23105051 its reverse (15050132), we get a palindrome (38155183).

The spelling of 23105051 in words is "twenty-three million, one hundred five thousand, fifty-one".

Divisors: 1 79 292469 23105051