Base | Representation |
---|---|
bin | 100111011100011000000 |
3 | 2102122221122 |
4 | 10323203000 |
5 | 312324410 |
6 | 43411412 |
7 | 13662110 |
oct | 4734300 |
9 | 2378848 |
10 | 1292480 |
11 | 803072 |
12 | 523b68 |
13 | 3633a7 |
14 | 259040 |
15 | 1a7e55 |
hex | 13b8c0 |
1292480 has 56 divisors (see below), whose sum is σ = 3523488. Its totient is φ = 442368.
The previous prime is 1292477. The next prime is 1292491. The reversal of 1292480 is 842921.
It is a tau number, because it is divible by the number of its divisors (56).
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, 1952 + ... + 2528.
21292480 is an apocalyptic number.
1292480 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 1292480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761744).
1292480 is an abundant number, since it is smaller than the sum of its proper divisors (2231008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1292480 is an equidigital number, since it uses as much as digits as its factorization.
1292480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 601 (or 591 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 1292480 is about 1136.8729040662. The cubic root of 1292480 is about 108.9284382845.
The spelling of 1292480 in words is "one million, two hundred ninety-two thousand, four hundred eighty".
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