Base | Representation |
---|---|
bin | 1000000111101… |
… | …10110100111110 |
3 | 11202011211220011 |
4 | 10003312310332 |
5 | 114414313440 |
6 | 10432013434 |
7 | 1455003130 |
oct | 403666476 |
9 | 152154804 |
10 | 68119870 |
11 | 354a7515 |
12 | 1a99127a |
13 | 11160b20 |
14 | 9093050 |
15 | 5ea89ea |
hex | 40f6d3e |
68119870 has 32 divisors (see below), whose sum is σ = 150913728. Its totient is φ = 21558528.
The previous prime is 68119861. The next prime is 68119897. The reversal of 68119870 is 7891186.
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, 36519 + ... + 38338.
It is an arithmetic number, because the mean of its divisors is an integer number (4716054).
Almost surely, 268119870 is an apocalyptic number.
68119870 is an abundant number, since it is smaller than the sum of its proper divisors (82793858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68119870 is a wasteful number, since it uses less digits than its factorization.
68119870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74884.
The product of its (nonzero) digits is 24192, while the sum is 40.
The square root of 68119870 is about 8253.4762373196. The cubic root of 68119870 is about 408.4052066552.
The spelling of 68119870 in words is "sixty-eight million, one hundred nineteen thousand, eight hundred seventy".
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