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24129020 = 2254328057
BaseRepresentation
bin101110000001…
…0110111111100
31200101212210102
41130002313330
522134112040
62221100232
7412043666
oct134026774
950355712
1024129020
1112690543
1280b7678
134cca936
1432c1536
1521b9515
hex1702dfc

24129020 has 24 divisors (see below), whose sum is σ = 51851184. Its totient is φ = 9426816.

The previous prime is 24128999. The next prime is 24129059. The reversal of 24129020 is 2092142.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24128983 and 24129001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13169 + ... + 14888.

It is an arithmetic number, because the mean of its divisors is an integer number (2160466).

Almost surely, 224129020 is an apocalyptic number.

24129020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24129020 is an abundant number, since it is smaller than the sum of its proper divisors (27722164).

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

24129020 is a wasteful number, since it uses less digits than its factorization.

24129020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28109 (or 28107 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 24129020 is about 4912.1298842763. The cubic root of 24129020 is about 288.9658768075.

The spelling of 24129020 in words is "twenty-four million, one hundred twenty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 28057 56114 112228 140285 280570 561140 1206451 2412902 4825804 6032255 12064510 24129020