Base | Representation |
---|---|
bin | 110000001101111… |
… | …001010101000101 |
3 | 2002101011212111100 |
4 | 300031321111011 |
5 | 3124042332221 |
6 | 212134330313 |
7 | 26021645034 |
oct | 6015712505 |
9 | 2071155440 |
10 | 808949061 |
11 | 3856a3448 |
12 | 1a6ab9999 |
13 | cb7972ab |
14 | 7961871b |
15 | 4b043926 |
hex | 30379545 |
808949061 has 12 divisors (see below), whose sum is σ = 1206175360. Its totient is φ = 521902440.
The previous prime is 808949039. The next prime is 808949069. The reversal of 808949061 is 160949808.
808949061 is a `hidden beast` number, since 80 + 89 + 490 + 6 + 1 = 666.
It is a de Polignac number, because none of the positive numbers 2k-808949061 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 808948998 and 808949016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (808949069) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1449451 + ... + 1450008.
Almost surely, 2808949061 is an apocalyptic number.
It is an amenable number.
808949061 is a deficient number, since it is larger than the sum of its proper divisors (397226299).
808949061 is a wasteful number, since it uses less digits than its factorization.
808949061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2899496 (or 2899493 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
The square root of 808949061 is about 28442.0298326262. The cubic root of 808949061 is about 931.7664276964.
The spelling of 808949061 in words is "eight hundred eight million, nine hundred forty-nine thousand, sixty-one".
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