Base | Representation |
---|---|
bin | 10110111110001… |
… | …100011111110011 |
3 | 222212012111100021 |
4 | 112332030133303 |
5 | 1242130342432 |
6 | 102124304311 |
7 | 12356604343 |
oct | 2676143763 |
9 | 885174307 |
10 | 385402867 |
11 | 188605973 |
12 | a90a2097 |
13 | 61b00445 |
14 | 39284d23 |
15 | 23c7d697 |
hex | 16f8c7f3 |
385402867 has 4 divisors (see below), whose sum is σ = 393602976. Its totient is φ = 377202760.
The previous prime is 385402861. The next prime is 385402877. The reversal of 385402867 is 768204583.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768204583 = 31 ⋅24780793.
It is a cyclic number.
It is not a de Polignac number, because 385402867 - 27 = 385402739 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (385402861) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4099984 + ... + 4100077.
It is an arithmetic number, because the mean of its divisors is an integer number (98400744).
Almost surely, 2385402867 is an apocalyptic number.
385402867 is a deficient number, since it is larger than the sum of its proper divisors (8200109).
385402867 is an equidigital number, since it uses as much as digits as its factorization.
385402867 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8200108.
The product of its (nonzero) digits is 322560, while the sum is 43.
The square root of 385402867 is about 19631.6801879004. The cubic root of 385402867 is about 727.7322928605.
The spelling of 385402867 in words is "three hundred eighty-five million, four hundred two thousand, eight hundred sixty-seven".
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