Base | Representation |
---|---|
bin | 11010100010011010… |
… | …001010010101100000 |
3 | 2201112211120011210212 |
4 | 122202122022111200 |
5 | 431324102231343 |
6 | 21031253313252 |
7 | 2026056566402 |
oct | 324232122540 |
9 | 81484504725 |
10 | 28494570848 |
11 | 110a2495907 |
12 | 5632935828 |
13 | 28c1521913 |
14 | 1544530b72 |
15 | b1b8aac18 |
hex | 6a268a560 |
28494570848 has 24 divisors (see below), whose sum is σ = 56526928920. Its totient is φ = 14138525440.
The previous prime is 28494570847. The next prime is 28494570931. The reversal of 28494570848 is 84807549482.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28494570847) 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, 3394493 + ... + 3402876.
It is an arithmetic number, because the mean of its divisors is an integer number (2355288705).
Almost surely, 228494570848 is an apocalyptic number.
It is an amenable number.
28494570848 is a deficient number, since it is larger than the sum of its proper divisors (28032358072).
28494570848 is a wasteful number, since it uses less digits than its factorization.
28494570848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6797510 (or 6797502 counting only the distinct ones).
The product of its (nonzero) digits is 20643840, while the sum is 59.
The spelling of 28494570848 in words is "twenty-eight billion, four hundred ninety-four million, five hundred seventy thousand, eight hundred forty-eight".
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