Base | Representation |
---|---|
bin | 10110101111001… |
… | …111000001000110 |
3 | 222120211020121001 |
4 | 112233033001012 |
5 | 1240124343110 |
6 | 101504243514 |
7 | 12311351410 |
oct | 2657170106 |
9 | 876736531 |
10 | 381481030 |
11 | 186377387 |
12 | a791059a |
13 | 61059328 |
14 | 389439b0 |
15 | 2375663a |
hex | 16bcf046 |
381481030 has 32 divisors (see below), whose sum is σ = 789122880. Its totient is φ = 130066560.
The previous prime is 381481027. The next prime is 381481057. The reversal of 381481030 is 30184183.
It is a self number, because there is not a number n which added to its sum of digits gives 381481030.
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, 2385 + ... + 27724.
It is an arithmetic number, because the mean of its divisors is an integer number (24660090).
Almost surely, 2381481030 is an apocalyptic number.
381481030 is an abundant number, since it is smaller than the sum of its proper divisors (407641850).
381481030 is a wasteful number, since it uses less digits than its factorization.
381481030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30304.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 381481030 is about 19531.5393658564. The cubic root of 381481030 is about 725.2554185267.
The spelling of 381481030 in words is "three hundred eighty-one million, four hundred eighty-one thousand, thirty".
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