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23001113 = 175313121
BaseRepresentation
bin101011110111…
…1100000011001
31121021120121002
41113233200121
521342013423
62140554345
7366335432
oct127574031
947246532
1023001113
1111a90093
1278529b5
1349c4435
1430aa489
152045228
hex15ef819

23001113 has 4 divisors (see below), whose sum is σ = 23015988. Its totient is φ = 22986240.

The previous prime is 23001109. The next prime is 23001137. The reversal of 23001113 is 31110032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1721344 + 21279769 = 1312^2 + 4613^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001113 - 22 = 23001109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23001094 and 23001103.

It is not an unprimeable number, because it can be changed into a prime (23001103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4808 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (5753997).

Almost surely, 223001113 is an apocalyptic number.

It is an amenable number.

23001113 is a deficient number, since it is larger than the sum of its proper divisors (14875).

23001113 is a wasteful number, since it uses less digits than its factorization.

23001113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14874.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 23001113 is about 4795.9475601804. The cubic root of 23001113 is about 284.3912851922.

Adding to 23001113 its reverse (31110032), we get a palindrome (54111145).

The spelling of 23001113 in words is "twenty-three million, one thousand, one hundred thirteen".

Divisors: 1 1753 13121 23001113