Base | Representation |
---|---|
bin | 101111110001001… |
… | …011011000001000 |
3 | 2001212000101200011 |
4 | 233301023120020 |
5 | 3120130431213 |
6 | 211305121304 |
7 | 25600651546 |
oct | 5761133010 |
9 | 2055011604 |
10 | 801420808 |
11 | 381421351 |
12 | 1a4489234 |
13 | ca05c7c6 |
14 | 78618d96 |
15 | 4a55803d |
hex | 2fc4b608 |
801420808 has 16 divisors (see below), whose sum is σ = 1503013500. Its totient is φ = 400617216.
The previous prime is 801420803. The next prime is 801420821. The reversal of 801420808 is 808024108.
It can be written as a sum of positive squares in 2 ways, for example, as 672779844 + 128640964 = 25938^2 + 11342^2 .
It is a super-2 number, since 2×8014208082 = 1284550622990745728, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 801420808.
It is not an unprimeable number, because it can be changed into a prime (801420803) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36708 + ... + 54316.
Almost surely, 2801420808 is an apocalyptic number.
It is an amenable number.
801420808 is a deficient number, since it is larger than the sum of its proper divisors (701592692).
801420808 is a wasteful number, since it uses less digits than its factorization.
801420808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23304 (or 23300 counting only the distinct ones).
The product of its (nonzero) digits is 4096, while the sum is 31.
The square root of 801420808 is about 28309.3766798211. The cubic root of 801420808 is about 928.8670089099.
The spelling of 801420808 in words is "eight hundred one million, four hundred twenty thousand, eight hundred eight".
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