Base | Representation |
---|---|
bin | 111101010011010… |
… | …100001011100001 |
3 | 2122200020212111200 |
4 | 331103110023201 |
5 | 4101242123234 |
6 | 250015431413 |
7 | 34325611134 |
oct | 7523241341 |
9 | 2580225450 |
10 | 1028473569 |
11 | 488601462 |
12 | 248525569 |
13 | 1350c9456 |
14 | 9a84021b |
15 | 60457d99 |
hex | 3d4d42e1 |
1028473569 has 12 divisors (see below), whose sum is σ = 1485858816. Its totient is φ = 685517112.
The previous prime is 1028473549. The next prime is 1028473597. The reversal of 1028473569 is 9653748201.
1028473569 is a `hidden beast` number, since 1 + 0 + 2 + 84 + 7 + 3 + 569 = 666.
1028473569 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1028473569 - 215 = 1028440801 is a prime.
It is a super-2 number, since 2×10284735692 = 2115515764263195522, which contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
1028473569 is strictly pandigital in base 10.
It is not an unprimeable number, because it can be changed into a prime (1028473519) 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, 69024 + ... + 82590.
It is an arithmetic number, because the mean of its divisors is an integer number (123821568).
It is a 2-persistent number, because it is pandigital, and so is 2⋅1028473569 = 2056947138, but 3⋅1028473569 = 3085420707 is not.
Almost surely, 21028473569 is an apocalyptic number.
It is an amenable number.
1028473569 is a deficient number, since it is larger than the sum of its proper divisors (457385247).
1028473569 is a wasteful number, since it uses less digits than its factorization.
1028473569 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21996 (or 21993 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The square root of 1028473569 is about 32069.8233390831. The cubic root of 1028473569 is about 1009.4025054747.
The spelling of 1028473569 in words is "one billion, twenty-eight million, four hundred seventy-three thousand, five hundred sixty-nine".
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