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23530133 = 1116712809
BaseRepresentation
bin101100111000…
…0101010010101
31122021110021102
41121300222111
522010431013
62200155445
7404000654
oct131605225
948243242
1023530133
11123115a0
127a68b85
134b4b173
1431a719b
1520ebd58
hex1670a95

23530133 has 8 divisors (see below), whose sum is σ = 25824960. Its totient is φ = 21261280.

The previous prime is 23530121. The next prime is 23530141. The reversal of 23530133 is 33103532.

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 23530133 - 26 = 23530069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23530183) 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, 4568 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (3228120).

Almost surely, 223530133 is an apocalyptic number.

It is an amenable number.

23530133 is a deficient number, since it is larger than the sum of its proper divisors (2294827).

23530133 is a wasteful number, since it uses less digits than its factorization.

23530133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 23530133 is about 4850.7868433894. The cubic root of 23530133 is about 286.5550901334. Note that the first 3 decimals are identical.

Adding to 23530133 its reverse (33103532), we get a palindrome (56633665).

The spelling of 23530133 in words is "twenty-three million, five hundred thirty thousand, one hundred thirty-three".

Divisors: 1 11 167 1837 12809 140899 2139103 23530133