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24200420 = 2251210021
BaseRepresentation
bin101110001010…
…0010011100100
31200112111201212
41130110103210
522143403140
62222410552
7412462106
oct134242344
950474655
1024200420
111272a152
128130a58
13502429a
1432dd576
1521d0765
hex17144e4

24200420 has 12 divisors (see below), whose sum is σ = 50820924. Its totient is φ = 9680160.

The previous prime is 24200417. The next prime is 24200437. The reversal of 24200420 is 2400242.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15952036 + 8248384 = 3994^2 + 2872^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 24200395 and 24200404.

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, 604991 + ... + 605030.

It is an arithmetic number, because the mean of its divisors is an integer number (4235077).

Almost surely, 224200420 is an apocalyptic number.

24200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24200420 is an abundant number, since it is smaller than the sum of its proper divisors (26620504).

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

24200420 is a wasteful number, since it uses less digits than its factorization.

24200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210030 (or 1210028 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 24200420 is about 4919.3922388848. The cubic root of 24200420 is about 289.2506217076.

Adding to 24200420 its reverse (2400242), we get a palindrome (26600662).

The spelling of 24200420 in words is "twenty-four million, two hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1210021 2420042 4840084 6050105 12100210 24200420