Base | Representation |
---|---|
bin | 100000001111001… |
… | …1101001101011100 |
3 | 2210101110100211002 |
4 | 1000132131031130 |
5 | 4203410211123 |
6 | 255201045432 |
7 | 35543342333 |
oct | 10036351534 |
9 | 2711410732 |
10 | 1081725788 |
11 | 505673660 |
12 | 262326878 |
13 | 143152c40 |
14 | a3942d1a |
15 | 64e76528 |
hex | 4079d35c |
1081725788 has 48 divisors (see below), whose sum is σ = 2320690176. Its totient is φ = 434132160.
The previous prime is 1081725763. The next prime is 1081725823. The reversal of 1081725788 is 8875271801.
It is a congruent number.
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, 27956 + ... + 54267.
It is an arithmetic number, because the mean of its divisors is an integer number (48347712).
Almost surely, 21081725788 is an apocalyptic number.
It is an amenable number.
1081725788 is an abundant number, since it is smaller than the sum of its proper divisors (1238964388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1081725788 is a wasteful number, since it uses less digits than its factorization.
1081725788 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82274 (or 82272 counting only the distinct ones).
The product of its (nonzero) digits is 250880, while the sum is 47.
The square root of 1081725788 is about 32889.5999975676. The cubic root of 1081725788 is about 1026.5317690211.
The spelling of 1081725788 in words is "one billion, eighty-one million, seven hundred twenty-five thousand, seven hundred eighty-eight".
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