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24242020 = 225111011091
BaseRepresentation
bin101110001111…
…0011101100100
31200121121210121
41130132131210
522201221040
62223331324
7413024305
oct134363544
950547717
1024242020
1112758430
128150b44
13503a1ba
1433107ac
1521dcc4a
hex171e764

24242020 has 48 divisors (see below), whose sum is σ = 56137536. Its totient is φ = 8720000.

The previous prime is 24241991. The next prime is 24242021. The reversal of 24242020 is 2024242.

It is a junction number, because it is equal to n+sod(n) for n = 24241985 and 24242003.

It is not an unprimeable number, because it can be changed into a prime (24242021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21675 + ... + 22765.

It is an arithmetic number, because the mean of its divisors is an integer number (1169532).

Almost surely, 224242020 is an apocalyptic number.

24242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24242020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28068768).

24242020 is an abundant number, since it is smaller than the sum of its proper divisors (31895516).

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

24242020 is a wasteful number, since it uses less digits than its factorization.

24242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 24242020 is about 4923.6185879899. The cubic root of 24242020 is about 289.4162653578.

Adding to 24242020 its reverse (2024242), we get a palindrome (26266262).

It can be divided in two parts, 2424 and 2020, that added together give a palindrome (4444).

The spelling of 24242020 in words is "twenty-four million, two hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 1010 1091 1111 2020 2182 2222 4364 4444 5455 5555 10910 11110 12001 21820 22220 24002 48004 60005 110191 120010 220382 240020 440764 550955 1101910 1212101 2203820 2424202 4848404 6060505 12121010 24242020