Base | Representation |
---|---|
bin | 1000001000011… |
… | …10000000011010 |
3 | 11202100200010110 |
4 | 10010032000122 |
5 | 114430333220 |
6 | 10434025150 |
7 | 1455546666 |
oct | 404160032 |
9 | 152320113 |
10 | 68214810 |
11 | 35561884 |
12 | 1aa181b6 |
13 | 111950c1 |
14 | 90b98a6 |
15 | 5ec6be0 |
hex | 410e01a |
68214810 has 16 divisors (see below), whose sum is σ = 163715616. Its totient is φ = 18190608.
The previous prime is 68214793. The next prime is 68214821. The reversal of 68214810 is 1841286.
It is a super-2 number, since 2×682148102 = 9306520606672200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2273827 = 68214810 / (6 + 8 + 2 + 1 + 4 + 8 + 1 + 0).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136884 + ... + 1136943.
It is an arithmetic number, because the mean of its divisors is an integer number (10232226).
Almost surely, 268214810 is an apocalyptic number.
68214810 is an abundant number, since it is smaller than the sum of its proper divisors (95500806).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68214810 is a wasteful number, since it uses less digits than its factorization.
68214810 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2273837.
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 68214810 is about 8259.2257506379. The cubic root of 68214810 is about 408.5948526958.
The spelling of 68214810 in words is "sixty-eight million, two hundred fourteen thousand, eight hundred ten".
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