Base | Representation |
---|---|
bin | 101010001001011011010 |
3 | 2121011111012 |
4 | 11101023122 |
5 | 323143312 |
6 | 45333522 |
7 | 14511323 |
oct | 5211332 |
9 | 2534435 |
10 | 1381082 |
11 | 86369a |
12 | 5672a2 |
13 | 394811 |
14 | 27d44a |
15 | 1c4322 |
hex | 1512da |
1381082 has 4 divisors (see below), whose sum is σ = 2071626. Its totient is φ = 690540.
The previous prime is 1381069. The next prime is 1381103. The reversal of 1381082 is 2801831.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2801831 = 83 ⋅33757.
It can be written as a sum of positive squares in only one way, i.e., 1168561 + 212521 = 1081^2 + 461^2 .
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345269 + ... + 345272.
21381082 is an apocalyptic number.
1381082 is a deficient number, since it is larger than the sum of its proper divisors (690544).
1381082 is an equidigital number, since it uses as much as digits as its factorization.
1381082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 690543.
The product of its (nonzero) digits is 384, while the sum is 23.
The square root of 1381082 is about 1175.1944519951. The cubic root of 1381082 is about 111.3627178903.
The spelling of 1381082 in words is "one million, three hundred eighty-one thousand, eighty-two".
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