Base | Representation |
---|---|
bin | 10110101011000… |
… | …101000101000000 |
3 | 222111202220101010 |
4 | 112223011011000 |
5 | 1234340013434 |
6 | 101425040520 |
7 | 12266163555 |
oct | 2653050500 |
9 | 874686333 |
10 | 380391744 |
11 | 1857a2a47 |
12 | a7486140 |
13 | 60a67595 |
14 | 3873ca2c |
15 | 235dd9e9 |
hex | 16ac5140 |
380391744 has 56 divisors (see below), whose sum is σ = 1008969280. Its totient is φ = 126480384.
The previous prime is 380391721. The next prime is 380391751. The reversal of 380391744 is 447193083.
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 7 ways as a sum of consecutive naturals, for example, 82032 + ... + 86544.
Almost surely, 2380391744 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 380391744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504484640).
380391744 is an abundant number, since it is smaller than the sum of its proper divisors (628577536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380391744 is a wasteful number, since it uses less digits than its factorization.
380391744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4967 (or 4957 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 39.
The square root of 380391744 is about 19503.6341229013. The cubic root of 380391744 is about 724.5644591322.
The spelling of 380391744 in words is "three hundred eighty million, three hundred ninety-one thousand, seven hundred forty-four".
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