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23031113 = 73290159
BaseRepresentation
bin101011111011…
…0110101001001
31121100002202012
41113312311021
521343443423
62141345305
7366522050
oct127666511
947302665
1023031113
1112000686
127868235
134a04ca1
1430b7397
15204e078
hex15f6d49

23031113 has 4 divisors (see below), whose sum is σ = 26321280. Its totient is φ = 19740948.

The previous prime is 23031103. The next prime is 23031121. The reversal of 23031113 is 31113032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23031113 - 28 = 23030857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23031103) 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, 1645073 + ... + 1645086.

It is an arithmetic number, because the mean of its divisors is an integer number (6580320).

Almost surely, 223031113 is an apocalyptic number.

It is an amenable number.

23031113 is a deficient number, since it is larger than the sum of its proper divisors (3290167).

23031113 is an equidigital number, since it uses as much as digits as its factorization.

23031113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290166.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 23031113 is about 4799.0741815479. The cubic root of 23031113 is about 284.5148738779.

Adding to 23031113 its reverse (31113032), we get a palindrome (54144145).

The spelling of 23031113 in words is "twenty-three million, thirty-one thousand, one hundred thirteen".

Divisors: 1 7 3290159 23031113