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27225331 = 721912909
BaseRepresentation
bin110011111011…
…0110011110011
31220020012010121
41213312303303
523432202311
62411311111
7450261100
oct147666363
956205117
1027225331
1114405881
12914b497
135843083
143889aa7
1525cbb71
hex19f6cf3

27225331 has 12 divisors (see below), whose sum is σ = 31847040. Its totient is φ = 23205840.

The previous prime is 27225329. The next prime is 27225343. The reversal of 27225331 is 13352272.

It is not a de Polignac number, because 27225331 - 21 = 27225329 is a prime.

It is a super-2 number, since 2×272253312 = 1482437296119122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27225296 and 27225305.

It is not an unprimeable number, because it can be changed into a prime (27225301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7905 + ... + 10813.

It is an arithmetic number, because the mean of its divisors is an integer number (2653920).

Almost surely, 227225331 is an apocalyptic number.

27225331 is a deficient number, since it is larger than the sum of its proper divisors (4621709).

27225331 is a wasteful number, since it uses less digits than its factorization.

27225331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114 (or 3107 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 27225331 is about 5217.7898577846. The cubic root of 27225331 is about 300.8322483333.

It can be divided in two parts, 27225 and 331, that added together give a square (27556 = 1662).

The spelling of 27225331 in words is "twenty-seven million, two hundred twenty-five thousand, three hundred thirty-one".

Divisors: 1 7 49 191 1337 2909 9359 20363 142541 555619 3889333 27225331