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242433220 = 22512121661
BaseRepresentation
bin11100111001100…
…11110011000100
3121220011212212011
432130303303010
5444030330340
640020104004
76002435251
oct1634636304
9556155764
10242433220
11114935737
1269235004
133b2c3513
14242aa428
151643c0ea
hexe733cc4

242433220 has 12 divisors (see below), whose sum is σ = 509109804. Its totient is φ = 96973280.

The previous prime is 242433193. The next prime is 242433253. The reversal of 242433220 is 22334242.

It can be written as a sum of positive squares in 2 ways, for example, as 76177984 + 166255236 = 8728^2 + 12894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242433191 and 242433200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060811 + ... + 6060850.

It is an arithmetic number, because the mean of its divisors is an integer number (42425817).

Almost surely, 2242433220 is an apocalyptic number.

242433220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242433220 is an abundant number, since it is smaller than the sum of its proper divisors (266676584).

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

242433220 is a wasteful number, since it uses less digits than its factorization.

242433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121670 (or 12121668 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 242433220 is about 15570.2671781829. The cubic root of 242433220 is about 623.5396046505.

Adding to 242433220 its reverse (22334242), we get a palindrome (264767462).

The spelling of 242433220 in words is "two hundred forty-two million, four hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12121661 24243322 48486644 60608305 121216610 242433220