Base | Representation |
---|---|
bin | 10110110000010… |
… | …011001101000000 |
3 | 222121100102201010 |
4 | 112300103031000 |
5 | 1240212312240 |
6 | 101514240520 |
7 | 12313623564 |
oct | 2660231500 |
9 | 877312633 |
10 | 381760320 |
11 | 1865481a7 |
12 | a7a26140 |
13 | 611264a6 |
14 | 389b76a4 |
15 | 237ae280 |
hex | 16c13340 |
381760320 has 112 divisors (see below), whose sum is σ = 1238024448. Its totient is φ = 99624960.
The previous prime is 381760297. The next prime is 381760363. The reversal of 381760320 is 23067183.
381760320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
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 15 ways as a sum of consecutive naturals, for example, 40890 + ... + 49350.
Almost surely, 2381760320 is an apocalyptic number.
381760320 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 381760320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619012224).
381760320 is an abundant number, since it is smaller than the sum of its proper divisors (856264128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
381760320 is a wasteful number, since it uses less digits than its factorization.
381760320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8528 (or 8518 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 381760320 is about 19538.6877757950. The cubic root of 381760320 is about 725.4323667523.
The spelling of 381760320 in words is "three hundred eighty-one million, seven hundred sixty thousand, three hundred twenty".
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