Base | Representation |
---|---|
bin | 11010111111011111… |
… | …110111010110001010 |
3 | 2202210211212220002000 |
4 | 122333133313112022 |
5 | 433324021331234 |
6 | 21151525451430 |
7 | 2044134036144 |
oct | 327737672612 |
9 | 82724786060 |
10 | 28982605194 |
11 | 11322a1a284 |
12 | 574a270b76 |
13 | 296b67753a |
14 | 158d28dc94 |
15 | b4965d899 |
hex | 6bf7f758a |
28982605194 has 32 divisors (see below), whose sum is σ = 64435962240. Its totient is φ = 9656342496.
The previous prime is 28982605181. The next prime is 28982605229. The reversal of 28982605194 is 49150628982.
It is a happy number.
28982605194 is a `hidden beast` number, since 28 + 9 + 8 + 2 + 605 + 1 + 9 + 4 = 666.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a self number, because there is not a number n which added to its sum of digits gives 28982605194.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8382 + ... + 240905.
It is an arithmetic number, because the mean of its divisors is an integer number (2013623820).
Almost surely, 228982605194 is an apocalyptic number.
28982605194 is an abundant number, since it is smaller than the sum of its proper divisors (35453357046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28982605194 is a wasteful number, since it uses less digits than its factorization.
28982605194 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 251451 (or 251445 counting only the distinct ones).
The product of its (nonzero) digits is 2488320, while the sum is 54.
The spelling of 28982605194 in words is "twenty-eight billion, nine hundred eighty-two million, six hundred five thousand, one hundred ninety-four".
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