Base | Representation |
---|---|
bin | 100011111110100… |
… | …0111000000100100 |
3 | 10010010120012120211 |
4 | 1013331013000210 |
5 | 4433020424303 |
6 | 315442305204 |
7 | 41626021600 |
oct | 10775070044 |
9 | 3103505524 |
10 | 1207201828 |
11 | 56a485668 |
12 | 298358204 |
13 | 163146511 |
14 | b6486500 |
15 | 70eae66d |
hex | 47f47024 |
1207201828 has 36 divisors (see below), whose sum is σ = 2564376192. Its totient is φ = 494875920.
The previous prime is 1207201777. The next prime is 1207201837. The reversal of 1207201828 is 8281027021.
It is a self number, because there is not a number n which added to its sum of digits gives 1207201828.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129388 + ... + 138403.
It is an arithmetic number, because the mean of its divisors is an integer number (71232672).
Almost surely, 21207201828 is an apocalyptic number.
It is an amenable number.
1207201828 is an abundant number, since it is smaller than the sum of its proper divisors (1357174364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1207201828 is a wasteful number, since it uses less digits than its factorization.
1207201828 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267832 (or 267823 counting only the distinct ones).
The product of its (nonzero) digits is 3584, while the sum is 31.
The square root of 1207201828 is about 34744.8100872634. The cubic root of 1207201828 is about 1064.7801872455.
Adding to 1207201828 its reverse (8281027021), we get a palindrome (9488228849).
The spelling of 1207201828 in words is "one billion, two hundred seven million, two hundred one thousand, eight hundred twenty-eight".
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