Base | Representation |
---|---|
bin | 1110000101100001… |
… | …1101000010010001 |
3 | 100202112011010111000 |
4 | 3201120131002101 |
5 | 30221002041420 |
6 | 1423114012213 |
7 | 162463245363 |
oct | 34130350221 |
9 | 10675133430 |
10 | 3781283985 |
11 | 1670488696 |
12 | 896417069 |
13 | 48351355b |
14 | 27c29cd33 |
15 | 171e70690 |
hex | e161d091 |
3781283985 has 64 divisors (see below), whose sum is σ = 6827558400. Its totient is φ = 1985347584.
The previous prime is 3781283983. The next prime is 3781284029. The reversal of 3781283985 is 5893821873.
It is not a de Polignac number, because 3781283985 - 21 = 3781283983 is a prime.
It is not an unprimeable number, because it can be changed into a prime (3781283983) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2682961 + ... + 2684369.
It is an arithmetic number, because the mean of its divisors is an integer number (106680600).
Almost surely, 23781283985 is an apocalyptic number.
It is an amenable number.
3781283985 is a deficient number, since it is larger than the sum of its proper divisors (3046274415).
3781283985 is a wasteful number, since it uses less digits than its factorization.
3781283985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1719 (or 1713 counting only the distinct ones).
The product of its digits is 2903040, while the sum is 54.
The square root of 3781283985 is about 61492.1457179695. The cubic root of 3781283985 is about 1557.9245884864.
The spelling of 3781283985 in words is "three billion, seven hundred eighty-one million, two hundred eighty-three thousand, nine hundred eighty-five".
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