Base | Representation |
---|---|
bin | 101001010111000… |
… | …0011111001001010 |
3 | 10120201101212022200 |
4 | 1102232003321022 |
5 | 10320234300112 |
6 | 345413301030 |
7 | 46251105312 |
oct | 12256037112 |
9 | 3521355280 |
10 | 1387806282 |
11 | 652420445 |
12 | 328934776 |
13 | 19169c565 |
14 | d245a442 |
15 | 81c86cdc |
hex | 52b83e4a |
1387806282 has 24 divisors (see below), whose sum is σ = 3014862240. Its totient is φ = 461379240.
The previous prime is 1387806229. The next prime is 1387806289. The reversal of 1387806282 is 2826087831.
1387806282 is a `hidden beast` number, since 13 + 8 + 7 + 8 + 0 + 628 + 2 = 666.
It is not an unprimeable number, because it can be changed into a prime (1387806289) 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, 94894 + ... + 108537.
It is an arithmetic number, because the mean of its divisors is an integer number (125619260).
Almost surely, 21387806282 is an apocalyptic number.
1387806282 is an abundant number, since it is smaller than the sum of its proper divisors (1627055958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1387806282 is a wasteful number, since it uses less digits than its factorization.
1387806282 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 203818 (or 203815 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The square root of 1387806282 is about 37253.2720978977. The cubic root of 1387806282 is about 1115.4316150266.
The spelling of 1387806282 in words is "one billion, three hundred eighty-seven million, eight hundred six thousand, two hundred eighty-two".
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