Base | Representation |
---|---|
bin | 10111011011100011100… |
… | …10010100100000000000 |
3 | 2211222000120021210010000 |
4 | 23231301302110200000 |
5 | 101142234340312203 |
6 | 1413502035040000 |
7 | 112110222151254 |
oct | 13556162244000 |
9 | 2758016253100 |
10 | 805067900928 |
11 | 290477929775 |
12 | 11003b740000 |
13 | 5abc0bc0515 |
14 | 2ad73460264 |
15 | 15e1d1ac4a3 |
hex | bb71c94800 |
805067900928 has 480 divisors, whose sum is σ = 2511565056000. Its totient is φ = 256635371520.
The previous prime is 805067900921. The next prime is 805067900947. The reversal of 805067900928 is 829009760508.
It is a happy number.
It is a super-2 number, since 2×8050679009282 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (805067900921) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 457684113 + ... + 457685871.
It is an arithmetic number, because the mean of its divisors is an integer number (5232427200).
Almost surely, 2805067900928 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 805067900928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255782528000).
805067900928 is an abundant number, since it is smaller than the sum of its proper divisors (1706497155072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
805067900928 is a wasteful number, since it uses less digits than its factorization.
805067900928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1913 (or 1884 counting only the distinct ones).
The product of its (nonzero) digits is 2177280, while the sum is 54.
The spelling of 805067900928 in words is "eight hundred five billion, sixty-seven million, nine hundred thousand, nine hundred twenty-eight".
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