Base | Representation |
---|---|
bin | 101110110101… |
… | …001110110100 |
3 | 212002201102010 |
4 | 232311032310 |
5 | 11120323120 |
6 | 1115044220 |
7 | 206231004 |
oct | 56651664 |
9 | 25081363 |
10 | 12276660 |
11 | 6a25700 |
12 | 4140670 |
13 | 270abc6 |
14 | 18b8004 |
15 | 11277e0 |
hex | bb53b4 |
12276660 has 144 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 2787840.
The previous prime is 12276643. The next prime is 12276683. The reversal of 12276660 is 6667221.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137896 + ... + 137984.
It is an arithmetic number, because the mean of its divisors is an integer number (279300).
Almost surely, 212276660 is an apocalyptic number.
12276660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12276660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20109600).
12276660 is an abundant number, since it is smaller than the sum of its proper divisors (27942540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12276660 is a wasteful number, since it uses less digits than its factorization.
12276660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142 (or 129 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 12276660 is about 3503.8065015066. The cubic root of 12276660 is about 230.6889236805.
It can be divided in two parts, 1227 and 6660, that added together give a palindrome (7887).
The spelling of 12276660 in words is "twelve million, two hundred seventy-six thousand, six hundred sixty".
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