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23190053 = 29799657
BaseRepresentation
bin101100001110…
…1101000100101
31121122011202212
41120131220211
521414040203
62145013205
7401053325
oct130355045
947564685
1023190053
11120aa037
127924205
134a5c433
143119285
1520811d8
hex161da25

23190053 has 4 divisors (see below), whose sum is σ = 23989740. Its totient is φ = 22390368.

The previous prime is 23190047. The next prime is 23190059. The reversal of 23190053 is 35009132.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (23190047) and next prime (23190059).

It can be written as a sum of positive squares in 2 ways, for example, as 18515809 + 4674244 = 4303^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 23190053 - 28 = 23189797 is a prime.

It is a super-3 number, since 3×231900533 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23190059) 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, 399800 + ... + 399857.

It is an arithmetic number, because the mean of its divisors is an integer number (5997435).

Almost surely, 223190053 is an apocalyptic number.

It is an amenable number.

23190053 is a deficient number, since it is larger than the sum of its proper divisors (799687).

23190053 is an equidigital number, since it uses as much as digits as its factorization.

23190053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799686.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 23190053 is about 4815.6051540798. The cubic root of 23190053 is about 285.1678625350.

Adding to 23190053 its reverse (35009132), we get a palindrome (58199185).

The spelling of 23190053 in words is "twenty-three million, one hundred ninety thousand, fifty-three".

Divisors: 1 29 799657 23190053