Base | Representation |
---|---|
bin | 10110101001110… |
… | …010001110111001 |
3 | 222111010122220011 |
4 | 112221302032321 |
5 | 1234243134114 |
6 | 101413501521 |
7 | 12263251342 |
oct | 2651621671 |
9 | 874118804 |
10 | 380052409 |
11 | 185591000 |
12 | a73418a1 |
13 | 60978ca9 |
14 | 386910c9 |
15 | 235731c4 |
hex | 16a723b9 |
380052409 has 8 divisors (see below), whose sum is σ = 418030560. Its totient is φ = 345500980.
The previous prime is 380052401. The next prime is 380052427. The reversal of 380052409 is 904250083.
It is not a de Polignac number, because 380052409 - 23 = 380052401 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (380052401) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141439 + ... + 144100.
It is an arithmetic number, because the mean of its divisors is an integer number (52253820).
Almost surely, 2380052409 is an apocalyptic number.
It is an amenable number.
380052409 is a deficient number, since it is larger than the sum of its proper divisors (37978151).
380052409 is an equidigital number, since it uses as much as digits as its factorization.
380052409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 285572 (or 285550 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 380052409 is about 19494.9329057578. The cubic root of 380052409 is about 724.3489416368.
The spelling of 380052409 in words is "three hundred eighty million, fifty-two thousand, four hundred nine".
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