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242247252 = 223131552867
BaseRepresentation
bin11100111000001…
…10011001010100
3121212211102202110
432130012121110
5444003403002
640012111020
76001032132
oct1634063124
9555742673
10242247252
11114818a45
1269165470
133b259990
142425c752
1516401e6c
hexe706654

242247252 has 24 divisors (see below), whose sum is σ = 608724256. Its totient is φ = 74537568.

The previous prime is 242247241. The next prime is 242247307. The reversal of 242247252 is 252742242.

It is a super-2 number, since 2×2422472522 = 117367462203103008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776278 + ... + 776589.

Almost surely, 2242247252 is an apocalyptic number.

It is an amenable number.

242247252 is an abundant number, since it is smaller than the sum of its proper divisors (366477004).

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

242247252 is a wasteful number, since it uses less digits than its factorization.

242247252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552887 (or 1552885 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 242247252 is about 15564.2941375444. The cubic root of 242247252 is about 623.3801269519.

Adding to 242247252 its reverse (252742242), we get a palindrome (494989494).

The spelling of 242247252 in words is "two hundred forty-two million, two hundred forty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1552867 3105734 4658601 6211468 9317202 18634404 20187271 40374542 60561813 80749084 121123626 242247252