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11321225 = 521512999
BaseRepresentation
bin101011001011…
…111110001001
3210022011210122
4223023332021
510344234400
61042353025
7165141326
oct53137611
923264718
1011321225
116432893
12395b775
132465066
141709b4d
15ed9685
hexacbf89

11321225 has 12 divisors (see below), whose sum is σ = 14136000. Its totient is φ = 8994000.

The previous prime is 11321203. The next prime is 11321243. The reversal of 11321225 is 52212311.

It is a happy number.

It is not a de Polignac number, because 11321225 - 212 = 11317129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2276 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (1178000).

Almost surely, 211321225 is an apocalyptic number.

It is an amenable number.

11321225 is a deficient number, since it is larger than the sum of its proper divisors (2814775).

11321225 is a wasteful number, since it uses less digits than its factorization.

11321225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3155 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 11321225 is about 3364.7028100562. The cubic root of 11321225 is about 224.5421140795.

Adding to 11321225 its reverse (52212311), we get a palindrome (63533536).

The spelling of 11321225 in words is "eleven million, three hundred twenty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 151 755 2999 3775 14995 74975 452849 2264245 11321225