Base | Representation |
---|---|
bin | 11011000101010001000… |
… | …100110101110010101000 |
3 | 20120220202221100122021021 |
4 | 123011101010311302220 |
5 | 220442443223000233 |
6 | 3542545134022224 |
7 | 251313216006460 |
oct | 33052104656250 |
9 | 6526687318237 |
10 | 1861081062568 |
11 | 658309817a92 |
12 | 260834347974 |
13 | 106664952490 |
14 | 66110a70ba0 |
15 | 33627150e2d |
hex | 1b151135ca8 |
1861081062568 has 64 divisors (see below), whose sum is σ = 4520844720000. Its totient is φ = 697501746432.
The previous prime is 1861081062539. The next prime is 1861081062593. The reversal of 1861081062568 is 8652601801681.
It is a Harshad number since it is a multiple of its sum of digits (52).
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, 67260643 + ... + 67288306.
It is an arithmetic number, because the mean of its divisors is an integer number (70638198750).
Almost surely, 21861081062568 is an apocalyptic number.
It is an amenable number.
1861081062568 is an abundant number, since it is smaller than the sum of its proper divisors (2659763657432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1861081062568 is a wasteful number, since it uses less digits than its factorization.
1861081062568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 134548994 (or 134548990 counting only the distinct ones).
The product of its (nonzero) digits is 1105920, while the sum is 52.
The spelling of 1861081062568 in words is "one trillion, eight hundred sixty-one billion, eighty-one million, sixty-two thousand, five hundred sixty-eight".
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