Base | Representation |
---|---|
bin | 101111011111… |
… | …100100100000 |
3 | 212102112022002 |
4 | 233133210200 |
5 | 11141400310 |
6 | 1122503132 |
7 | 210552416 |
oct | 57374440 |
9 | 25375262 |
10 | 12450080 |
11 | 7033a25 |
12 | 4204aa8 |
13 | 276bb16 |
14 | 19212b6 |
15 | 115dda5 |
hex | bdf920 |
12450080 has 24 divisors (see below), whose sum is σ = 29413692. Its totient is φ = 4979968.
The previous prime is 12450079. The next prime is 12450131. The reversal of 12450080 is 8005421.
It can be written as a sum of positive squares in 2 ways, for example, as 11751184 + 698896 = 3428^2 + 836^2 .
It is a Harshad number since it is a multiple of its sum of digits (20).
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, 38747 + ... + 39066.
Almost surely, 212450080 is an apocalyptic number.
12450080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12450080 is an abundant number, since it is smaller than the sum of its proper divisors (16963612).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12450080 is an equidigital number, since it uses as much as digits as its factorization.
12450080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77828 (or 77820 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 20.
The square root of 12450080 is about 3528.4670892613. The cubic root of 12450080 is about 231.7700853465.
The spelling of 12450080 in words is "twelve million, four hundred fifty thousand, eighty".
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