Base | Representation |
---|---|
bin | 1000001010111… |
… | …11101100110110 |
3 | 11202222200010210 |
4 | 10011133230312 |
5 | 120022040210 |
6 | 10445130250 |
7 | 1461442365 |
oct | 405375466 |
9 | 152880123 |
10 | 68549430 |
11 | 35770224 |
12 | 1ab59986 |
13 | 112814c1 |
14 | 91657dc |
15 | 6040e20 |
hex | 415fb36 |
68549430 has 32 divisors (see below), whose sum is σ = 171673344. Its totient is φ = 17484896.
The previous prime is 68549381. The next prime is 68549431. The reversal of 68549430 is 3494586.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68549431) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48984 + ... + 50363.
It is an arithmetic number, because the mean of its divisors is an integer number (5364792).
Almost surely, 268549430 is an apocalyptic number.
68549430 is an abundant number, since it is smaller than the sum of its proper divisors (103123914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68549430 is a wasteful number, since it uses less digits than its factorization.
68549430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99380.
The product of its (nonzero) digits is 103680, while the sum is 39.
The square root of 68549430 is about 8279.4583156146. The cubic root of 68549430 is about 409.2618684338.
The spelling of 68549430 in words is "sixty-eight million, five hundred forty-nine thousand, four hundred thirty".
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