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23143452 = 2231928621
BaseRepresentation
bin101100001001…
…0010000011100
31121112210211220
41120102100130
521411042302
62144013340
7400500423
oct130222034
947483756
1023143452
1112078022
127901250
134a44167
1431062ba
1520724bc
hex161241c

23143452 has 12 divisors (see below), whose sum is σ = 54001416. Its totient is φ = 7714480.

The previous prime is 23143429. The next prime is 23143459. The reversal of 23143452 is 25434132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143459) 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, 964299 + ... + 964322.

It is an arithmetic number, because the mean of its divisors is an integer number (4500118).

Almost surely, 223143452 is an apocalyptic number.

It is an amenable number.

23143452 is an abundant number, since it is smaller than the sum of its proper divisors (30857964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23143452 is a wasteful number, since it uses less digits than its factorization.

23143452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928628 (or 1928626 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 23143452 is about 4810.7641804603. The cubic root of 23143452 is about 284.9767170884.

Adding to 23143452 its reverse (25434132), we get a palindrome (48577584).

The spelling of 23143452 in words is "twenty-three million, one hundred forty-three thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1928621 3857242 5785863 7714484 11571726 23143452