Base | Representation |
---|---|
bin | 10110111111001… |
… | …110110111100000 |
3 | 222212201022020220 |
4 | 112333032313200 |
5 | 1242213042340 |
6 | 102134203040 |
7 | 12362116044 |
oct | 2677166740 |
9 | 885638226 |
10 | 385674720 |
11 | 188781142 |
12 | a91b3480 |
13 | 61b970c2 |
14 | 39316024 |
15 | 23cd3ed0 |
hex | 16fcede0 |
385674720 has 96 divisors (see below), whose sum is σ = 1254113280. Its totient is φ = 99525120.
The previous prime is 385674691. The next prime is 385674721. The reversal of 385674720 is 27476583.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385674721) 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, 1921 + ... + 27839.
It is an arithmetic number, because the mean of its divisors is an integer number (13063680).
Almost surely, 2385674720 is an apocalyptic number.
385674720 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 385674720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627056640).
385674720 is an abundant number, since it is smaller than the sum of its proper divisors (868438560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385674720 is a wasteful number, since it uses less digits than its factorization.
385674720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25968 (or 25960 counting only the distinct ones).
The product of its (nonzero) digits is 282240, while the sum is 42.
The square root of 385674720 is about 19638.6028016252. The cubic root of 385674720 is about 727.9033603556.
The spelling of 385674720 in words is "three hundred eighty-five million, six hundred seventy-four thousand, seven hundred twenty".
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