Base | Representation |
---|---|
bin | 110001111110000… |
… | …000100101110010 |
3 | 2011102111000211000 |
4 | 301332000211302 |
5 | 3204103321210 |
6 | 215104302430 |
7 | 26526522552 |
oct | 6176004562 |
9 | 2142430730 |
10 | 838338930 |
11 | 3a02474a0 |
12 | 1b4911a16 |
13 | 1048b7650 |
14 | 7d4a9162 |
15 | 4d8ebac0 |
hex | 31f80972 |
838338930 has 128 divisors (see below), whose sum is σ = 2626525440. Its totient is φ = 187591680.
The previous prime is 838338923. The next prime is 838338973. The reversal of 838338930 is 39833838.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27754 + ... + 49466.
It is an arithmetic number, because the mean of its divisors is an integer number (20519730).
It is the magic constant of a 1188 × 1188 magic square.
Almost surely, 2838338930 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 838338930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313262720).
838338930 is an abundant number, since it is smaller than the sum of its proper divisors (1788186510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
838338930 is a wasteful number, since it uses less digits than its factorization.
838338930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21753 (or 21747 counting only the distinct ones).
The product of its (nonzero) digits is 373248, while the sum is 45.
The square root of 838338930 is about 28954.0831317450. The cubic root of 838338930 is about 942.9164475684.
The spelling of 838338930 in words is "eight hundred thirty-eight million, three hundred thirty-eight thousand, nine hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.150 sec. • engine limits •