Base | Representation |
---|---|
bin | 111100110110101… |
… | …100000111011110 |
3 | 2122011010121202220 |
4 | 330312230013132 |
5 | 4042332010223 |
6 | 245150530210 |
7 | 34205045166 |
oct | 7466540736 |
9 | 2564117686 |
10 | 1020969438 |
11 | 4843464a5 |
12 | 245b06966 |
13 | 13369c938 |
14 | 998495a6 |
15 | 5e9746e3 |
hex | 3cdac1de |
1020969438 has 32 divisors (see below), whose sum is σ = 2152673280. Its totient is φ = 322334880.
The previous prime is 1020969403. The next prime is 1020969451. The reversal of 1020969438 is 8349690201.
It is a self number, because there is not a number n which added to its sum of digits gives 1020969438.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49653 + ... + 67136.
It is an arithmetic number, because the mean of its divisors is an integer number (67271040).
Almost surely, 21020969438 is an apocalyptic number.
1020969438 is an abundant number, since it is smaller than the sum of its proper divisors (1131703842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1020969438 is a wasteful number, since it uses less digits than its factorization.
1020969438 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116872.
The product of its (nonzero) digits is 93312, while the sum is 42.
The square root of 1020969438 is about 31952.6123814626. The cubic root of 1020969438 is about 1006.9415165235.
The spelling of 1020969438 in words is "one billion, twenty million, nine hundred sixty-nine thousand, four hundred thirty-eight".
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