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12270084 = 2231022507
BaseRepresentation
bin101110110011…
…101000000100
3212002101101120
4232303220010
511120120314
61114553540
7206202561
oct56635004
925071346
1012270084
116a20772
1241388b0
132707c08
1418b5868
1511258a9
hexbb3a04

12270084 has 12 divisors (see below), whose sum is σ = 28630224. Its totient is φ = 4090024.

The previous prime is 12270077. The next prime is 12270101. The reversal of 12270084 is 48007221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×122700842 = 301109922734112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511242 + ... + 511265.

It is an arithmetic number, because the mean of its divisors is an integer number (2385852).

Almost surely, 212270084 is an apocalyptic number.

It is an amenable number.

12270084 is an abundant number, since it is smaller than the sum of its proper divisors (16360140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12270084 is a wasteful number, since it uses less digits than its factorization.

12270084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022514 (or 1022512 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12270084 is about 3502.8679678229. The cubic root of 12270084 is about 230.6477267723.

The spelling of 12270084 in words is "twelve million, two hundred seventy thousand, eighty-four".

Divisors: 1 2 3 4 6 12 1022507 2045014 3067521 4090028 6135042 12270084