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23093081 = 112397941
BaseRepresentation
bin101100000010…
…1111101011001
31121110020202022
41120011331121
521402434311
62142544225
7400200524
oct130057531
947406668
1023093081
11120431a0
127898075
134a2725b
1430d1bbb
1520625db
hex1605f59

23093081 has 16 divisors (see below), whose sum is σ = 26587008. Its totient is φ = 19852800.

The previous prime is 23093023. The next prime is 23093087. The reversal of 23093081 is 18039032.

It is not a de Polignac number, because 23093081 - 222 = 18898777 is a prime.

It is a super-2 number, since 2×230930812 = 1066580780145122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23093081.

It is not an unprimeable number, because it can be changed into a prime (23093087) 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, 24071 + ... + 25011.

It is an arithmetic number, because the mean of its divisors is an integer number (1661688).

Almost surely, 223093081 is an apocalyptic number.

It is an amenable number.

23093081 is a deficient number, since it is larger than the sum of its proper divisors (3493927).

23093081 is a wasteful number, since it uses less digits than its factorization.

23093081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 23093081 is about 4805.5260898262. The cubic root of 23093081 is about 284.7698192740.

The spelling of 23093081 in words is "twenty-three million, ninety-three thousand, eighty-one".

Divisors: 1 11 23 97 253 941 1067 2231 10351 21643 24541 91277 238073 1004047 2099371 23093081