Base | Representation |
---|---|
bin | 10110101110010… |
… | …000101001111000 |
3 | 222120100021012101 |
4 | 112232100221320 |
5 | 1240043204332 |
6 | 101454553144 |
7 | 12306235606 |
oct | 2656205170 |
9 | 876307171 |
10 | 381225592 |
11 | 186212480 |
12 | a78087b4 |
13 | 60c99c97 |
14 | 388b8876 |
15 | 23705ae7 |
hex | 16b90a78 |
381225592 has 32 divisors (see below), whose sum is σ = 787086720. Its totient is φ = 171660640.
The previous prime is 381225587. The next prime is 381225701. The reversal of 381225592 is 295522183.
381225592 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10828 + ... + 29659.
It is an arithmetic number, because the mean of its divisors is an integer number (24596460).
Almost surely, 2381225592 is an apocalyptic number.
It is an amenable number.
381225592 is an abundant number, since it is smaller than the sum of its proper divisors (405861128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
381225592 is a wasteful number, since it uses less digits than its factorization.
381225592 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40611 (or 40607 counting only the distinct ones).
The product of its digits is 43200, while the sum is 37.
The square root of 381225592 is about 19524.9991549296. Note that the first 3 decimals coincide. The cubic root of 381225592 is about 725.0935064493.
The spelling of 381225592 in words is "three hundred eighty-one million, two hundred twenty-five thousand, five hundred ninety-two".
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