Base | Representation |
---|---|
bin | 100110111001100… |
… | …1000100000001100 |
3 | 10100222001120010100 |
4 | 1031303020200030 |
5 | 10133120443204 |
6 | 333304011100 |
7 | 44226304005 |
oct | 11563104014 |
9 | 3328046110 |
10 | 1305249804 |
11 | 60a863551 |
12 | 305160a90 |
13 | 17a555681 |
14 | c54ca1ac |
15 | 798caa39 |
hex | 4dcc880c |
1305249804 has 18 divisors (see below), whose sum is σ = 3299381540. Its totient is φ = 435083256.
The previous prime is 1305249733. The next prime is 1305249811. The reversal of 1305249804 is 4089425031.
It is a tau number, because it is divible by the number of its divisors (18).
It is a super-3 number, since 3×13052498043 (a number of 28 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 36256939 = 1305249804 / (1 + 3 + 0 + 5 + 2 + 4 + 9 + 8 + 0 + 4).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18128434 + ... + 18128505.
Almost surely, 21305249804 is an apocalyptic number.
It is an amenable number.
1305249804 is an abundant number, since it is smaller than the sum of its proper divisors (1994131736).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1305249804 is a wasteful number, since it uses less digits than its factorization.
1305249804 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36256949 (or 36256944 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 1305249804 is about 36128.2410864410. The cubic root of 1305249804 is about 1092.8600377653.
The spelling of 1305249804 in words is "one billion, three hundred five million, two hundred forty-nine thousand, eight hundred four".
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