Base | Representation |
---|---|
bin | 1000001000001… |
… | …01001101110000 |
3 | 11202021211201202 |
4 | 10010011031300 |
5 | 114423210200 |
6 | 10433150332 |
7 | 1455340004 |
oct | 404051560 |
9 | 152254652 |
10 | 68178800 |
11 | 35537818 |
12 | 1a9bb3a8 |
13 | 111818b1 |
14 | 90aa704 |
15 | 5ebb1d5 |
hex | 4105370 |
68178800 has 30 divisors (see below), whose sum is σ = 163800528. Its totient is φ = 27271360.
The previous prime is 68178791. The next prime is 68178809. The reversal of 68178800 is 887186.
It is an interprime number because it is at equal distance from previous prime (68178791) and next prime (68178809).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68178809) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84824 + ... + 85623.
Almost surely, 268178800 is an apocalyptic number.
It is an amenable number.
68178800 is an abundant number, since it is smaller than the sum of its proper divisors (95621728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68178800 is a wasteful number, since it uses less digits than its factorization.
68178800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 170465 (or 170454 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 38.
The square root of 68178800 is about 8257.0454764401. The cubic root of 68178800 is about 408.5229421608.
The spelling of 68178800 in words is "sixty-eight million, one hundred seventy-eight thousand, eight hundred".
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