Base | Representation |
---|---|
bin | 1001010001010… |
… | …1110111010110 |
3 | 2201011122202110 |
4 | 2110111313112 |
5 | 34423334440 |
6 | 3505251450 |
7 | 651350541 |
oct | 224256726 |
9 | 81148673 |
10 | 38886870 |
11 | 1aa50310 |
12 | 11033b86 |
13 | 8096ca9 |
14 | 5243858 |
15 | 3632080 |
hex | 2515dd6 |
38886870 has 32 divisors (see below), whose sum is σ = 101813760. Its totient is φ = 9427040.
The previous prime is 38886857. The next prime is 38886893. The reversal of 38886870 is 7868883.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58590 + ... + 59249.
It is an arithmetic number, because the mean of its divisors is an integer number (3181680).
Almost surely, 238886870 is an apocalyptic number.
38886870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
38886870 is an abundant number, since it is smaller than the sum of its proper divisors (62926890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38886870 is a wasteful number, since it uses less digits than its factorization.
38886870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117860.
The product of its (nonzero) digits is 516096, while the sum is 48.
The square root of 38886870 is about 6235.9337712968. The cubic root of 38886870 is about 338.7929226712.
The spelling of 38886870 in words is "thirty-eight million, eight hundred eighty-six thousand, eight hundred seventy".
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