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12274148 = 228093793
BaseRepresentation
bin101110110100…
…100111100100
3212002120222002
4232310213210
511120233043
61115024432
7206220455
oct56644744
925076862
1012274148
116a23827
12413b118
132709a13
1418b712c
151126bb8
hexbb49e4

12274148 has 12 divisors (see below), whose sum is σ = 21511980. Its totient is φ = 6127872.

The previous prime is 12274127. The next prime is 12274159. The reversal of 12274148 is 84147221.

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 5607424 = 2582^2 + 2368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12274148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340 + ... + 5132.

It is an arithmetic number, because the mean of its divisors is an integer number (1792665).

Almost surely, 212274148 is an apocalyptic number.

It is an amenable number.

12274148 is a deficient number, since it is larger than the sum of its proper divisors (9237832).

12274148 is a wasteful number, since it uses less digits than its factorization.

12274148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606 (or 4604 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 12274148 is about 3503.4480158838. The cubic root of 12274148 is about 230.6731883990.

The spelling of 12274148 in words is "twelve million, two hundred seventy-four thousand, one hundred forty-eight".

Divisors: 1 2 4 809 1618 3236 3793 7586 15172 3068537 6137074 12274148