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242724272 = 24721110271
BaseRepresentation
bin11100111011110…
…10110110110000
3121220201200002212
432131322312300
5444114134042
640030231252
76005056640
oct1635726660
9556650085
10242724272
1111501437a
1269355528
133b395b3b
1424344520
1516498482
hexe77adb0

242724272 has 40 divisors (see below), whose sum is σ = 540060672. Its totient is φ = 103521600.

The previous prime is 242724269. The next prime is 242724281. The reversal of 242724272 is 272427242.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18497 + ... + 28767.

Almost surely, 2242724272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242724272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270030336).

242724272 is an abundant number, since it is smaller than the sum of its proper divisors (297336400).

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

242724272 is a wasteful number, since it uses less digits than its factorization.

242724272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10497 (or 10491 counting only the distinct ones).

The product of its digits is 25088, while the sum is 32.

The square root of 242724272 is about 15579.6107781934. The cubic root of 242724272 is about 623.7890339868.

The spelling of 242724272 in words is "two hundred forty-two million, seven hundred twenty-four thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 211 422 844 1477 1688 2954 3376 5908 10271 11816 20542 23632 41084 71897 82168 143794 164336 287588 575176 1150352 2167181 4334362 8668724 15170267 17337448 30340534 34674896 60681068 121362136 242724272