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225574081 = 1671350743
BaseRepresentation
bin11010111000111…
…11110011000001
3120201110100110121
431130133303001
5430221332311
634214500241
75406230245
oct1534376301
9521410417
10225574081
11106370167
1263664681
133796c8b5
1421d5c425
1514c0bb71
hexd71fcc1

225574081 has 4 divisors (see below), whose sum is σ = 226924992. Its totient is φ = 224223172.

The previous prime is 225574067. The next prime is 225574091. The reversal of 225574081 is 180475522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225574081 - 25 = 225574049 is a prime.

It is a super-2 number, since 2×2255740812 = 101767332037989122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225574021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675205 + ... + 675538.

It is an arithmetic number, because the mean of its divisors is an integer number (56731248).

Almost surely, 2225574081 is an apocalyptic number.

It is an amenable number.

225574081 is a deficient number, since it is larger than the sum of its proper divisors (1350911).

225574081 is a wasteful number, since it uses less digits than its factorization.

225574081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350910.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 225574081 is about 15019.1238426214. The cubic root of 225574081 is about 608.7370456564.

The spelling of 225574081 in words is "two hundred twenty-five million, five hundred seventy-four thousand, eighty-one".

Divisors: 1 167 1350743 225574081