Base | Representation |
---|---|
bin | 100111011111010011110 |
3 | 2102202000021 |
4 | 10323322132 |
5 | 312401412 |
6 | 43422354 |
7 | 13666354 |
oct | 4737236 |
9 | 2382007 |
10 | 1293982 |
11 | 804208 |
12 | 5249ba |
13 | 363c91 |
14 | 2597d4 |
15 | 1a8607 |
hex | 13be9e |
1293982 has 4 divisors (see below), whose sum is σ = 1940976. Its totient is φ = 646990.
The previous prime is 1293979. The next prime is 1293983. The reversal of 1293982 is 2893921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2893921 = 131 ⋅22091.
It is a d-powerful number, because it can be written as 1 + 211 + 95 + 311 + 96 + 8 + 219 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1293983) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323494 + ... + 323497.
It is an arithmetic number, because the mean of its divisors is an integer number (485244).
21293982 is an apocalyptic number.
1293982 is a deficient number, since it is larger than the sum of its proper divisors (646994).
1293982 is an equidigital number, since it uses as much as digits as its factorization.
1293982 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 646993.
The product of its digits is 7776, while the sum is 34.
The square root of 1293982 is about 1137.5332962160. The cubic root of 1293982 is about 108.9706174484.
The spelling of 1293982 in words is "one million, two hundred ninety-three thousand, nine hundred eighty-two".
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