Base | Representation |
---|---|
bin | 111111011111101011… |
… | …000010100001110010 |
3 | 20111222101021002110220 |
4 | 333133223002201302 |
5 | 2104111320024104 |
6 | 51153052033510 |
7 | 4632330611625 |
oct | 773753024162 |
9 | 214871232426 |
10 | 68177111154 |
11 | 26a06224769 |
12 | 11268462896 |
13 | 65768a22b9 |
14 | 342a8a1dbc |
15 | 1b905857d9 |
hex | fdfac2872 |
68177111154 has 16 divisors (see below), whose sum is σ = 136361854848. Its totient is φ = 22724431632.
The previous prime is 68177111137. The next prime is 68177111161. The reversal of 68177111154 is 45111177186.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198442 + ... + 419205.
It is an arithmetic number, because the mean of its divisors is an integer number (8522615928).
Almost surely, 268177111154 is an apocalyptic number.
68177111154 is an abundant number, since it is smaller than the sum of its proper divisors (68184743694).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68177111154 is a wasteful number, since it uses less digits than its factorization.
68177111154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 636049.
The product of its digits is 47040, while the sum is 42.
The spelling of 68177111154 in words is "sixty-eight billion, one hundred seventy-seven million, one hundred eleven thousand, one hundred fifty-four".
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