Base | Representation |
---|---|
bin | 1000000111001… |
… | …01110001001011 |
3 | 11202001022001012 |
4 | 10003211301023 |
5 | 114410044440 |
6 | 10430314135 |
7 | 1454262326 |
oct | 403456113 |
9 | 152038035 |
10 | 68049995 |
11 | 35459a72 |
12 | 1a95894b |
13 | 11138090 |
14 | 90757bd |
15 | 5e92e65 |
hex | 40e5c4b |
68049995 has 16 divisors (see below), whose sum is σ = 88482240. Its totient is φ = 49943424.
The previous prime is 68049977. The next prime is 68050007. The reversal of 68049995 is 59994086.
It is a cyclic number.
It is not a de Polignac number, because 68049995 - 28 = 68049739 is a prime.
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, 7721 + ... + 13989.
It is an arithmetic number, because the mean of its divisors is an integer number (5530140).
Almost surely, 268049995 is an apocalyptic number.
68049995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
68049995 is a deficient number, since it is larger than the sum of its proper divisors (20432245).
68049995 is a wasteful number, since it uses less digits than its factorization.
68049995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6454.
The product of its (nonzero) digits is 699840, while the sum is 50.
The square root of 68049995 is about 8249.2420863980. The cubic root of 68049995 is about 408.2655162491.
The spelling of 68049995 in words is "sixty-eight million, forty-nine thousand, nine hundred ninety-five".
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