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23280572 = 227839991
BaseRepresentation
bin101100011001…
…1101110111100
31121210202221102
41120303232330
521424434242
62150552232
7401611250
oct130635674
947722842
1023280572
1112161047
127968678
134a916b3
143140260
15209ce32
hex1633bbc

23280572 has 24 divisors (see below), whose sum is σ = 46663680. Its totient is φ = 9955440.

The previous prime is 23280571. The next prime is 23280581. The reversal of 23280572 is 27508232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23280571) 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, 22997 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (1944320).

Almost surely, 223280572 is an apocalyptic number.

It is an amenable number.

23280572 is an abundant number, since it is smaller than the sum of its proper divisors (23383108).

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

23280572 is a wasteful number, since it uses less digits than its factorization.

23280572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 23280572 is about 4824.9945077689. The cubic root of 23280572 is about 285.5384179119.

The spelling of 23280572 in words is "twenty-three million, two hundred eighty thousand, five hundred seventy-two".

Divisors: 1 2 4 7 14 28 839 991 1678 1982 3356 3964 5873 6937 11746 13874 23492 27748 831449 1662898 3325796 5820143 11640286 23280572