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23162453 = 137169069
BaseRepresentation
bin101100001011…
…0111001010101
31121120202220122
41120112321111
521412144303
62144241325
7400610006
oct130267125
947522818
1023162453
1112090326
127910245
134a4c9c2
14310d1ad
152077e38
hex1616e55

23162453 has 4 divisors (see below), whose sum is σ = 23331660. Its totient is φ = 22993248.

The previous prime is 23162443. The next prime is 23162473. The reversal of 23162453 is 35426132.

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 10252804 + 12909649 = 3202^2 + 3593^2 .

It is a cyclic number.

It is not a de Polignac number, because 23162453 - 24 = 23162437 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 (23162443) 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 3 ways as a sum of consecutive naturals, for example, 84398 + ... + 84671.

It is an arithmetic number, because the mean of its divisors is an integer number (5832915).

Almost surely, 223162453 is an apocalyptic number.

It is an amenable number.

23162453 is a deficient number, since it is larger than the sum of its proper divisors (169207).

23162453 is a wasteful number, since it uses less digits than its factorization.

23162453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169206.

The product of its digits is 4320, while the sum is 26.

The square root of 23162453 is about 4812.7386174610. The cubic root of 23162453 is about 285.0546853102.

Adding to 23162453 its reverse (35426132), we get a palindrome (58588585).

The spelling of 23162453 in words is "twenty-three million, one hundred sixty-two thousand, four hundred fifty-three".

Divisors: 1 137 169069 23162453