| Base | Representation |
|---|---|
| bin | 1100111100100011… |
| … | …10000000010100000 |
| 3 | 122221101102221200200 |
| 4 | 12132101300002200 |
| 5 | 103213301430030 |
| 6 | 3105403345200 |
| 7 | 334144413012 |
| oct | 63621600240 |
| 9 | 18841387620 |
| 10 | 6950420640 |
| 11 | 2a47370999 |
| 12 | 141b822200 |
| 13 | 869c67147 |
| 14 | 49d1321b2 |
| 15 | 2aa2c3d60 |
| hex | 19e4700a0 |
6950420640 has 144 divisors (see below), whose sum is σ = 23739986088. Its totient is φ = 1851752448.
The previous prime is 6950420629. The next prime is 6950420651. The reversal of 6950420640 is 460240596.
6950420640 is a `hidden beast` number, since 6 + 9 + 5 + 0 + 4 + 2 + 0 + 640 = 666.
It is an interprime number because it is at equal distance from previous prime (6950420629) and next prime (6950420651).
It can be written as a sum of positive squares in 4 ways, for example, as 4779233424 + 2171187216 = 69132^2 + 46596^2 .
It is a tau number, because it is divible by the number of its divisors (144).
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 = 6950420595 and 6950420604.
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, 2903284 + ... + 2905676.
Almost surely, 26950420640 is an apocalyptic number.
6950420640 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 6950420640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11869993044).
6950420640 is an abundant number, since it is smaller than the sum of its proper divisors (16789565448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6950420640 is a wasteful number, since it uses less digits than its factorization.
6950420640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4431 (or 4420 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 36.
The square root of 6950420640 is about 83369.1827955630. The cubic root of 6950420640 is about 1908.4041968986.
The spelling of 6950420640 in words is "six billion, nine hundred fifty million, four hundred twenty thousand, six hundred forty".
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