Base | Representation |
---|---|
bin | 111111100110000001… |
… | …011101001001100000 |
3 | 20112020210201212012101 |
4 | 333212001131021200 |
5 | 2104321103310111 |
6 | 51211415340144 |
7 | 4635063311464 |
oct | 774601351140 |
9 | 215223655171 |
10 | 68283650656 |
11 | 26a60382441 |
12 | 11298081654 |
13 | 6592995520 |
14 | 343aab64a4 |
15 | 1b99accbc1 |
hex | fe605d260 |
68283650656 has 24 divisors (see below), whose sum is σ = 144774471744. Its totient is φ = 31515530880.
The previous prime is 68283650629. The next prime is 68283650683. The reversal of 68283650656 is 65605638286.
It is an interprime number because it is at equal distance from previous prime (68283650629) and next prime (68283650683).
It is a junction number, because it is equal to n+sod(n) for n = 68283650597 and 68283650606.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82071280 + ... + 82072111.
It is an arithmetic number, because the mean of its divisors is an integer number (6032269656).
Almost surely, 268283650656 is an apocalyptic number.
It is an amenable number.
68283650656 is an abundant number, since it is smaller than the sum of its proper divisors (76490821088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68283650656 is a wasteful number, since it uses less digits than its factorization.
68283650656 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 164143414 (or 164143406 counting only the distinct ones).
The product of its (nonzero) digits is 12441600, while the sum is 55.
The spelling of 68283650656 in words is "sixty-eight billion, two hundred eighty-three million, six hundred fifty thousand, six hundred fifty-six".
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