Base | Representation |
---|---|
bin | 1000000110110… |
… | …11100000100010 |
3 | 11201222011101201 |
4 | 10003123200202 |
5 | 114402223340 |
6 | 10425351414 |
7 | 1454025652 |
oct | 403334042 |
9 | 151864351 |
10 | 68007970 |
11 | 35430438 |
12 | 1a93856a |
13 | 11121c04 |
14 | 9064362 |
15 | 5e8579a |
hex | 40db822 |
68007970 has 16 divisors (see below), whose sum is σ = 122508288. Its totient is φ = 27182320.
The previous prime is 68007967. The next prime is 68007977. The reversal of 68007970 is 7970086.
It is not an unprimeable number, because it can be changed into a prime (68007977) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23967 + ... + 26653.
It is an arithmetic number, because the mean of its divisors is an integer number (7656768).
Almost surely, 268007970 is an apocalyptic number.
68007970 is a deficient number, since it is larger than the sum of its proper divisors (54500318).
68007970 is a wasteful number, since it uses less digits than its factorization.
68007970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5225.
The product of its (nonzero) digits is 21168, while the sum is 37.
The square root of 68007970 is about 8246.6944893090. The cubic root of 68007970 is about 408.1814560350.
The spelling of 68007970 in words is "sixty-eight million, seven thousand, nine hundred seventy".
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