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225229697 = 71110128961
BaseRepresentation
bin11010110110010…
…11101110000001
3120200210212001122
431123023232001
5430124322242
634203242025
75403264230
oct1533135601
9520725048
10225229697
11106155450
1263519315
133787bc14
1421cacb17
1514b8ead2
hexd6cbb81

225229697 has 16 divisors (see below), whose sum is σ = 283595904. Its totient is φ = 173760000.

The previous prime is 225229681. The next prime is 225229717. The reversal of 225229697 is 796922522.

It is a cyclic number.

It is not a de Polignac number, because 225229697 - 24 = 225229681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225229607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6704 + ... + 22257.

It is an arithmetic number, because the mean of its divisors is an integer number (17724744).

Almost surely, 2225229697 is an apocalyptic number.

It is an amenable number.

225229697 is a deficient number, since it is larger than the sum of its proper divisors (58366207).

225229697 is a wasteful number, since it uses less digits than its factorization.

225229697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29080.

The product of its digits is 272160, while the sum is 44.

The square root of 225229697 is about 15007.6546135630. The cubic root of 225229697 is about 608.4271015443.

It can be divided in two parts, 225 and 229697, that added together give a palindrome (229922).

The spelling of 225229697 in words is "two hundred twenty-five million, two hundred twenty-nine thousand, six hundred ninety-seven".

Divisors: 1 7 11 77 101 707 1111 7777 28961 202727 318571 2229997 2925061 20475427 32175671 225229697