Search a number
-
+
242272008 = 233211227809
BaseRepresentation
bin11100111000011…
…00011100001000
3121212212200201100
432130030130020
5444010201013
640012421400
76001164246
oct1634143410
9555780640
10242272008
11114835600
1269177860
133b268024
1424267796
1516409473
hexe70c708

242272008 has 72 divisors (see below), whose sum is σ = 721252350. Its totient is φ = 73413120.

The previous prime is 242272007. The next prime is 242272027. The reversal of 242272008 is 800272242.

It can be written as a sum of positive squares in only one way, i.e., 186650244 + 55621764 = 13662^2 + 7458^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242272001) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5193 + ... + 22616.

Almost surely, 2242272008 is an apocalyptic number.

It is an amenable number.

242272008 is an abundant number, since it is smaller than the sum of its proper divisors (478980342).

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

242272008 is a wasteful number, since it uses less digits than its factorization.

242272008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843 (or 27825 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 242272008 is about 15565.0893990366. The cubic root of 242272008 is about 623.4013612798.

The spelling of 242272008 in words is "two hundred forty-two million, two hundred seventy-two thousand, eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 121 132 198 242 264 363 396 484 726 792 968 1089 1452 2178 2904 4356 8712 27809 55618 83427 111236 166854 222472 250281 305899 333708 500562 611798 667416 917697 1001124 1223596 1835394 2002248 2447192 2753091 3364889 3670788 5506182 6729778 7341576 10094667 11012364 13459556 20189334 22024728 26919112 30284001 40378668 60568002 80757336 121136004 242272008