Base | Representation |
---|---|
bin | 10110101011101… |
… | …011101101100100 |
3 | 222112001221110000 |
4 | 112223223231210 |
5 | 1234410044423 |
6 | 101432301300 |
7 | 12300423120 |
oct | 2653535544 |
9 | 875057400 |
10 | 380549988 |
11 | 1858a0925 |
12 | a7541830 |
13 | 60ac1610 |
14 | 38780580 |
15 | 23620843 |
hex | 16aebb64 |
380549988 has 120 divisors (see below), whose sum is σ = 1224504512. Its totient is φ = 100357056.
The previous prime is 380549971. The next prime is 380550011. The reversal of 380549988 is 889945083.
It is a happy number.
380549988 is a `hidden beast` number, since 3 + 8 + 0 + 549 + 98 + 8 = 666.
380549988 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 (54).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23031 + ... + 35937.
Almost surely, 2380549988 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 380549988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612252256).
380549988 is an abundant number, since it is smaller than the sum of its proper divisors (843954524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380549988 is a wasteful number, since it uses less digits than its factorization.
380549988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12943 (or 12932 counting only the distinct ones).
The product of its (nonzero) digits is 2488320, while the sum is 54.
The square root of 380549988 is about 19507.6904834991. The cubic root of 380549988 is about 724.6649187982.
The spelling of 380549988 in words is "three hundred eighty million, five hundred forty-nine thousand, nine hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •