Base | Representation |
---|---|
bin | 110000011001100… |
… | …110001101100000 |
3 | 2002120221201012110 |
4 | 300121212031200 |
5 | 3130334011410 |
6 | 212324155320 |
7 | 26060011662 |
oct | 6031461540 |
9 | 2076851173 |
10 | 812016480 |
11 | 3873a9000 |
12 | 1a7b38b40 |
13 | cc2cc532 |
14 | 79bb6532 |
15 | 4b44c720 |
hex | 30666360 |
812016480 has 384 divisors, whose sum is σ = 2975035392. Its totient is φ = 185856000.
The previous prime is 812016479. The next prime is 812016503. The reversal of 812016480 is 84610218.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent 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, 19805260 + ... + 19805300.
It is an arithmetic number, because the mean of its divisors is an integer number (7747488).
Almost surely, 2812016480 is an apocalyptic number.
812016480 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 812016480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487517696).
812016480 is an abundant number, since it is smaller than the sum of its proper divisors (2163018912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
812016480 is a wasteful number, since it uses less digits than its factorization.
812016480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123 (or 93 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 812016480 is about 28495.9028633942. The cubic root of 812016480 is about 932.9426505464.
Adding to 812016480 its reverse (84610218), we get a palindrome (896626698).
The spelling of 812016480 in words is "eight hundred twelve million, sixteen thousand, four hundred eighty".
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