Base | Representation |
---|---|
bin | 1001001110000… |
… | …0101010110100 |
3 | 2200202120212110 |
4 | 2103200222310 |
5 | 34344401410 |
6 | 3500451020 |
7 | 646452360 |
oct | 223405264 |
9 | 80676773 |
10 | 38668980 |
11 | 1a911639 |
12 | 10b49a70 |
13 | 801ba6c |
14 | 51c82a0 |
15 | 35dc720 |
hex | 24e0ab4 |
38668980 has 96 divisors (see below), whose sum is σ = 129153024. Its totient is φ = 8452224.
The previous prime is 38668969. The next prime is 38669023. The reversal of 38668980 is 8986683.
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 31 ways as a sum of consecutive naturals, for example, 7659 + ... + 11661.
It is an arithmetic number, because the mean of its divisors is an integer number (1345344).
Almost surely, 238668980 is an apocalyptic number.
38668980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38668980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64576512).
38668980 is an abundant number, since it is smaller than the sum of its proper divisors (90484044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38668980 is a wasteful number, since it uses less digits than its factorization.
38668980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4045 (or 4043 counting only the distinct ones).
The product of its (nonzero) digits is 497664, while the sum is 48.
The square root of 38668980 is about 6218.4387108019. The cubic root of 38668980 is about 338.1589649416.
The spelling of 38668980 in words is "thirty-eight million, six hundred sixty-eight thousand, nine hundred eighty".
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