Base | Representation |
---|---|
bin | 1000001000010… |
… | …10111000101110 |
3 | 11202100000121010 |
4 | 10010022320232 |
5 | 114424431110 |
6 | 10433450050 |
7 | 1455464511 |
oct | 404127056 |
9 | 152300533 |
10 | 68202030 |
11 | 35553216 |
12 | 1aa10926 |
13 | 1118c340 |
14 | 90b4d78 |
15 | 5ec3020 |
hex | 410ae2e |
68202030 has 32 divisors (see below), whose sum is σ = 176277024. Its totient is φ = 16788096.
The previous prime is 68201981. The next prime is 68202041. The reversal of 68202030 is 3020286.
It is a super-2 number, since 2×682020302 = 9303033792241800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68201988 and 68202006.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87049 + ... + 87828.
It is an arithmetic number, because the mean of its divisors is an integer number (5508657).
Almost surely, 268202030 is an apocalyptic number.
68202030 is an abundant number, since it is smaller than the sum of its proper divisors (108074994).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68202030 is a wasteful number, since it uses less digits than its factorization.
68202030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174900.
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 68202030 is about 8258.4520341284. The cubic root of 68202030 is about 408.5693344427.
The spelling of 68202030 in words is "sixty-eight million, two hundred two thousand, thirty".
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