Base | Representation |
---|---|
bin | 101110111000… |
… | …100000100000 |
3 | 212010101211011 |
4 | 232320200200 |
5 | 11121240310 |
6 | 1115230304 |
7 | 206315065 |
oct | 56704040 |
9 | 25111734 |
10 | 12290080 |
11 | 6a347a0 |
12 | 4148394 |
13 | 271404a |
14 | 18bcc6c |
15 | 112b78a |
hex | bb8820 |
12290080 has 48 divisors (see below), whose sum is σ = 31679424. Its totient is φ = 4468480.
The previous prime is 12290071. The next prime is 12290123. The reversal of 12290080 is 8009221.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a nialpdrome in base 16.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732 + ... + 5251.
It is an arithmetic number, because the mean of its divisors is an integer number (659988).
Almost surely, 212290080 is an apocalyptic number.
12290080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12290080 is an abundant number, since it is smaller than the sum of its proper divisors (19389344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12290080 is a wasteful number, since it uses less digits than its factorization.
12290080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7009 (or 7001 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 12290080 is about 3505.7210385312. The cubic root of 12290080 is about 230.7729508232.
It can be divided in two parts, 12 and 290080, that added together give a palindrome (290092).
The spelling of 12290080 in words is "twelve million, two hundred ninety thousand, eighty".
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