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23144353 = 127182239
BaseRepresentation
bin101100001001…
…0011110100001
31121112212002021
41120102132201
521411104403
62144021441
7400503151
oct130223641
947485067
1023144353
1112078771
127901881
134a446ab
143106761
1520728bd
hex16127a1

23144353 has 4 divisors (see below), whose sum is σ = 23326720. Its totient is φ = 22961988.

The previous prime is 23144347. The next prime is 23144357. The reversal of 23144353 is 35344132.

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 23144353 - 213 = 23136161 is a prime.

It is a super-2 number, since 2×231443532 = 1071322151577218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90993 + ... + 91246.

It is an arithmetic number, because the mean of its divisors is an integer number (5831680).

Almost surely, 223144353 is an apocalyptic number.

It is an amenable number.

23144353 is a deficient number, since it is larger than the sum of its proper divisors (182367).

23144353 is a wasteful number, since it uses less digits than its factorization.

23144353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182366.

The product of its digits is 4320, while the sum is 25.

The square root of 23144353 is about 4810.8578237150. The cubic root of 23144353 is about 284.9804151926.

Adding to 23144353 its reverse (35344132), we get a palindrome (58488485).

The spelling of 23144353 in words is "twenty-three million, one hundred forty-four thousand, three hundred fifty-three".

Divisors: 1 127 182239 23144353