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23085019 = 199471283
BaseRepresentation
bin101100000001…
…1111111011011
31121102211200201
41120003333123
521402210034
62142443031
7400135156
oct130037733
947384621
1023085019
1112038131
127893477
134a23699
1430ccc9d
152060014
hex1603fdb

23085019 has 8 divisors (see below), whose sum is σ = 24344640. Its totient is φ = 21829896.

The previous prime is 23084983. The next prime is 23085043. The reversal of 23085019 is 91058032.

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 23085019 - 213 = 23076827 is a prime.

It is a super-2 number, since 2×230850192 = 1065836204460722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23085059) 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, 17352 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (3043080).

Almost surely, 223085019 is an apocalyptic number.

23085019 is a deficient number, since it is larger than the sum of its proper divisors (1259621).

23085019 is a wasteful number, since it uses less digits than its factorization.

23085019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 23085019 is about 4804.6871906504. The cubic root of 23085019 is about 284.7366768579.

The spelling of 23085019 in words is "twenty-three million, eighty-five thousand, nineteen".

Divisors: 1 19 947 1283 17993 24377 1215001 23085019