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242315042 = 2178298597
BaseRepresentation
bin11100111000101…
…10111100100010
3121212221212202012
432130112330202
5444013040132
640013352522
76001433564
oct1634267442
9555855665
10242315042
11114864972
1269198742
133b2817a8
1424279334
15164170b2
hexe716f22

242315042 has 16 divisors (see below), whose sum is σ = 385362360. Its totient is φ = 113879808.

The previous prime is 242314987. The next prime is 242315057. The reversal of 242315042 is 240513242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 239971081 + 2343961 = 15491^2 + 1531^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242314999 and 242315017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23888 + ... + 32484.

Almost surely, 2242315042 is an apocalyptic number.

242315042 is a deficient number, since it is larger than the sum of its proper divisors (143047318).

242315042 is a wasteful number, since it uses less digits than its factorization.

242315042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9445.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 242315042 is about 15566.4717261170. The cubic root of 242315042 is about 623.4382700229.

Adding to 242315042 its reverse (240513242), we get a palindrome (482828284).

The spelling of 242315042 in words is "two hundred forty-two million, three hundred fifteen thousand, forty-two".

Divisors: 1 2 17 34 829 1658 8597 14093 17194 28186 146149 292298 7126913 14253826 121157521 242315042