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23972452 = 2271945061
BaseRepresentation
bin101101101110…
…0101001100100
31200002221000121
41123130221210
522114104302
62213451324
7410522350
oct133345144
950087017
1023972452
1112593949
128040b44
134c745aa
143280460
152187e37
hex16dca64

23972452 has 24 divisors (see below), whose sum is σ = 50469440. Its totient is φ = 9732960.

The previous prime is 23972447. The next prime is 23972453. The reversal of 23972452 is 25427932.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23972453) 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 7 ways as a sum of consecutive naturals, for example, 21999 + ... + 23062.

Almost surely, 223972452 is an apocalyptic number.

It is an amenable number.

23972452 is an abundant number, since it is smaller than the sum of its proper divisors (26496988).

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

23972452 is a wasteful number, since it uses less digits than its factorization.

23972452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45091 (or 45089 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 23972452 is about 4896.1670723128. The cubic root of 23972452 is about 288.3395076659.

The spelling of 23972452 in words is "twenty-three million, nine hundred seventy-two thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 45061 90122 180244 315427 630854 856159 1261708 1712318 3424636 5993113 11986226 23972452