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242269225 = 521122832
BaseRepresentation
bin11100111000010…
…11110000101001
3121212212112220021
432130023300221
5444010103400
640012400441
76001153162
oct1634136051
9555775807
10242269225
11114833500
1269176121
133b266993
1424266769
151640871a
hexe70bc29

242269225 has 27 divisors (see below), whose sum is σ = 331377879. Its totient is φ = 175573200.

The previous prime is 242269217. The next prime is 242269231. The reversal of 242269225 is 522962242.

The square root of 242269225 is 15565.

It is a perfect power (a square), and thus also a powerful number.

242269225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87216921 + 155052304 = 9339^2 + 12452^2 .

It is not a de Polignac number, because 242269225 - 23 = 242269217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 855934 + ... + 856216.

Almost surely, 2242269225 is an apocalyptic number.

242269225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

242269225 is the 15565-th square number.

242269225 is the 7783-rd centered octagonal number.

It is an amenable number.

242269225 is a deficient number, since it is larger than the sum of its proper divisors (89108654).

242269225 is an equidigital number, since it uses as much as digits as its factorization.

242269225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 299 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The cubic root of 242269225 is about 623.3989742484.

The spelling of 242269225 in words is "two hundred forty-two million, two hundred sixty-nine thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 121 275 283 605 1415 3025 3113 7075 15565 34243 77825 80089 171215 400445 856075 880979 2002225 4404895 9690769 22024475 48453845 242269225