| Base | Representation |
|---|---|
| bin | 110010100111110… |
| … | …101010001110000 |
| 3 | 2012012010001012100 |
| 4 | 302213311101300 |
| 5 | 3214410141030 |
| 6 | 220135300400 |
| 7 | 30021644664 |
| oct | 6247652160 |
| 9 | 2165101170 |
| 10 | 849302640 |
| 11 | 3a645570a |
| 12 | 1b851a700 |
| 13 | 106c55a54 |
| 14 | 80b208a4 |
| 15 | 4e865360 |
| hex | 329f5470 |
849302640 has 120 divisors (see below), whose sum is σ = 2900729520. Its totient is φ = 222630912.
The previous prime is 849302621. The next prime is 849302683. The reversal of 849302640 is 46203948.
It is a happy number.
849302640 is a `hidden beast` number, since 8 + 4 + 9 + 3 + 0 + 2 + 640 = 666.
849302640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 849302595 and 849302604.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32484 + ... + 52476.
It is an arithmetic number, because the mean of its divisors is an integer number (24172746).
Almost surely, 2849302640 is an apocalyptic number.
849302640 is a gapful number since it is divisible by the number (80) 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 849302640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450364760).
849302640 is an abundant number, since it is smaller than the sum of its proper divisors (2051426880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
849302640 is a wasteful number, since it uses less digits than its factorization.
849302640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20071 (or 20062 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The square root of 849302640 is about 29142.7973948967. The cubic root of 849302640 is about 947.0091125922.
The spelling of 849302640 in words is "eight hundred forty-nine million, three hundred two thousand, six hundred forty".
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