Base | Representation |
---|---|
bin | 10110101011010… |
… | …110110010100010 |
3 | 222111220120220000 |
4 | 112223112302202 |
5 | 1234344324130 |
6 | 101430400430 |
7 | 12266615223 |
oct | 2653266242 |
9 | 874816800 |
10 | 380464290 |
11 | 1858424a8 |
12 | a7500116 |
13 | 60a915cb |
14 | 3875b24a |
15 | 23605260 |
hex | 16ad6ca2 |
380464290 has 80 divisors (see below), whose sum is σ = 1027798200. Its totient is φ = 100984320.
The previous prime is 380464283. The next prime is 380464307. The reversal of 380464290 is 92464083.
It is a happy number.
380464290 is a `hidden beast` number, since 3 + 8 + 0 + 4 + 642 + 9 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 369908289 + 10556001 = 19233^2 + 3249^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 194236 + ... + 196184.
Almost surely, 2380464290 is an apocalyptic number.
380464290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 380464290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513899100).
380464290 is an abundant number, since it is smaller than the sum of its proper divisors (647333910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380464290 is a wasteful number, since it uses less digits than its factorization.
380464290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2209 (or 2200 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The square root of 380464290 is about 19505.4938414796. The cubic root of 380464290 is about 724.6105177134.
The spelling of 380464290 in words is "three hundred eighty million, four hundred sixty-four thousand, two hundred ninety".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •