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240242020 = 22512012101
BaseRepresentation
bin11100101000111…
…00110101100100
3121202001120002121
432110130311210
5443000221040
635501115324
75645011024
oct1624346544
9552046077
10240242020
11113679427
1268558b44
133aa07055
1423c99a84
1516157c4a
hexe51cd64

240242020 has 12 divisors (see below), whose sum is σ = 504508284. Its totient is φ = 96096800.

The previous prime is 240241997. The next prime is 240242021. The reversal of 240242020 is 20242042.

240242020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 176145984 + 64096036 = 13272^2 + 8006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240241985 and 240242003.

It is not an unprimeable number, because it can be changed into a prime (240242021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6006031 + ... + 6006070.

It is an arithmetic number, because the mean of its divisors is an integer number (42042357).

Almost surely, 2240242020 is an apocalyptic number.

240242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240242020 is an abundant number, since it is smaller than the sum of its proper divisors (264266264).

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

240242020 is a wasteful number, since it uses less digits than its factorization.

240242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12012110 (or 12012108 counting only the distinct ones).

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

The square root of 240242020 is about 15499.7425785076. The cubic root of 240242020 is about 621.6553233497.

Adding to 240242020 its reverse (20242042), we get a palindrome (260484062).

The spelling of 240242020 in words is "two hundred forty million, two hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 12012101 24024202 48048404 60060505 120121010 240242020