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242453020 = 22512122651
BaseRepresentation
bin11100111001110…
…00101000011100
3121220012220000111
432130320220130
5444031444040
640020335404
76002550055
oct1634705034
9556186014
10242453020
111149495a7
1269244564
133b2cc534
14242b372c
1516442dea
hexe738a1c

242453020 has 12 divisors (see below), whose sum is σ = 509151384. Its totient is φ = 96981200.

The previous prime is 242453017. The next prime is 242453027. The reversal of 242453020 is 20354242.

242453020 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 is a junction number, because it is equal to n+sod(n) for n = 242452982 and 242453000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242453027) 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, 6061306 + ... + 6061345.

It is an arithmetic number, because the mean of its divisors is an integer number (42429282).

Almost surely, 2242453020 is an apocalyptic number.

242453020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242453020 is an abundant number, since it is smaller than the sum of its proper divisors (266698364).

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

242453020 is a wasteful number, since it uses less digits than its factorization.

242453020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122660 (or 12122658 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 242453020 is about 15570.9029924407. The cubic root of 242453020 is about 623.5565794255.

The spelling of 242453020 in words is "two hundred forty-two million, four hundred fifty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 12122651 24245302 48490604 60613255 121226510 242453020