Base | Representation |
---|---|
bin | 10110101100110… |
… | …011100110001111 |
3 | 222112121220100022 |
4 | 112230303212033 |
5 | 1234444010211 |
6 | 101442452355 |
7 | 12303060422 |
oct | 2654634617 |
9 | 875556308 |
10 | 380844431 |
11 | 185a82070 |
12 | a76640bb |
13 | 60b95646 |
14 | 388199b9 |
15 | 2367cbdb |
hex | 16b3398f |
380844431 has 16 divisors (see below), whose sum is σ = 430161408. Its totient is φ = 334180800.
The previous prime is 380844427. The next prime is 380844463. The reversal of 380844431 is 134448083.
It is a cyclic number.
It is not a de Polignac number, because 380844431 - 22 = 380844427 is a prime.
It is a super-2 number, since 2×3808444312 = 290084961247427522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 380844391 and 380844400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380844481) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 32696 + ... + 42786.
It is an arithmetic number, because the mean of its divisors is an integer number (26885088).
Almost surely, 2380844431 is an apocalyptic number.
380844431 is a deficient number, since it is larger than the sum of its proper divisors (49316977).
380844431 is a wasteful number, since it uses less digits than its factorization.
380844431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10222.
The product of its (nonzero) digits is 36864, while the sum is 35.
The square root of 380844431 is about 19515.2358684183. The cubic root of 380844431 is about 724.8517689818.
The spelling of 380844431 in words is "three hundred eighty million, eight hundred forty-four thousand, four hundred thirty-one".
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