| Base | Representation |
|---|---|
| bin | 1011111100100100… |
| … | …10001100111110000 |
| 3 | 121112222111001221100 |
| 4 | 11332102101213300 |
| 5 | 101113400443110 |
| 6 | 2540231324400 |
| 7 | 314636304510 |
| oct | 57622214760 |
| 9 | 17488431840 |
| 10 | 6413687280 |
| 11 | 27a13a5200 |
| 12 | 12abb20700 |
| 13 | 7b29c0340 |
| 14 | 44bb37840 |
| 15 | 278101bc0 |
| hex | 17e4919f0 |
6413687280 has 720 divisors, whose sum is σ = 29175007680. Its totient is φ = 1228677120.
The previous prime is 6413687279. The next prime is 6413687323. The reversal of 6413687280 is 827863146.
6413687280 is a `hidden beast` number, since 6 + 4 + 1 + 368 + 7 + 280 = 666.
It is a tau number, because it is divible by the number of its divisors (720).
It is a super-2 number, since 2×64136872802 = 82270769051267596800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7927516 + ... + 7928324.
It is an arithmetic number, because the mean of its divisors is an integer number (40520844).
Almost surely, 26413687280 is an apocalyptic number.
6413687280 is a gapful number since it is divisible by the number (60) 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 6413687280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14587503840).
6413687280 is an abundant number, since it is smaller than the sum of its proper divisors (22761320400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6413687280 is a wasteful number, since it uses less digits than its factorization.
6413687280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 870 (or 850 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The square root of 6413687280 is about 80085.4998111393. The cubic root of 6413687280 is about 1857.9581478204.
The spelling of 6413687280 in words is "six billion, four hundred thirteen million, six hundred eighty-seven thousand, two hundred eighty".
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