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23669020 = 2251183451
BaseRepresentation
bin101101001001…
…0100100011100
31122112111210101
41122102210130
522024402040
62203150444
7405116614
oct132224434
948474711
1023669020
11123a6981
127b15424
134b9944b
143201a44
15212809a
hex169291c

23669020 has 12 divisors (see below), whose sum is σ = 49704984. Its totient is φ = 9467600.

The previous prime is 23668999. The next prime is 23669033. The reversal of 23669020 is 2096632.

It is a self number, because there is not a number n which added to its sum of digits gives 23669020.

It is a congruent number.

It is an unprimeable number.

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, 591706 + ... + 591745.

It is an arithmetic number, because the mean of its divisors is an integer number (4142082).

Almost surely, 223669020 is an apocalyptic number.

23669020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23669020 is an abundant number, since it is smaller than the sum of its proper divisors (26035964).

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

23669020 is a wasteful number, since it uses less digits than its factorization.

23669020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183460 (or 1183458 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23669020 is about 4865.0817053776. The cubic root of 23669020 is about 287.1177832025.

The spelling of 23669020 in words is "twenty-three million, six hundred sixty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 1183451 2366902 4733804 5917255 11834510 23669020