Base | Representation |
---|---|
bin | 1010011100110000… |
… | …1111101011001011 |
3 | 21020111010000111012 |
4 | 2213030033223023 |
5 | 21221040130003 |
6 | 1142200554135 |
7 | 126340102103 |
oct | 24714175313 |
9 | 7214100435 |
10 | 2805005003 |
11 | 120a396859 |
12 | 66348294b |
13 | 359190398 |
14 | 1c8768203 |
15 | 1163c78d8 |
hex | a730facb |
2805005003 has 8 divisors (see below), whose sum is σ = 2840878656. Its totient is φ = 2769181000.
The previous prime is 2805004991. The next prime is 2805005011. The reversal of 2805005003 is 3005005082.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2805005003 - 28 = 2805004747 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2805005003.
It is not an unprimeable number, because it can be changed into a prime (2805005033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108788 + ... + 132078.
It is an arithmetic number, because the mean of its divisors is an integer number (355109832).
Almost surely, 22805005003 is an apocalyptic number.
2805005003 is a deficient number, since it is larger than the sum of its proper divisors (35873653).
2805005003 is a wasteful number, since it uses less digits than its factorization.
2805005003 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24825.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 2805005003 is about 52962.2979391944. The cubic root of 2805005003 is about 1410.2990501283.
The spelling of 2805005003 in words is "two billion, eight hundred five million, five thousand, three".
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