Search a number
-
+
379584085 = 575916817
BaseRepresentation
bin10110100111111…
…111111001010101
3222110020212110211
4112213333321111
51234133142320
6101355445421
712256261066
oct2647777125
9873225424
10379584085
111852a1161
12a7156871
1360843a8a
14385ac56d
15234ce55a
hex169ffe55

379584085 has 4 divisors (see below), whose sum is σ = 455500908. Its totient is φ = 303667264.

The previous prime is 379584083. The next prime is 379584097. The reversal of 379584085 is 580485973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580485973 = 2632207171.

It can be written as a sum of positive squares in 2 ways, for example, as 189530289 + 190053796 = 13767^2 + 13786^2 .

It is a cyclic number.

It is not a de Polignac number, because 379584085 - 21 = 379584083 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379584083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37958404 + ... + 37958413.

It is an arithmetic number, because the mean of its divisors is an integer number (113875227).

Almost surely, 2379584085 is an apocalyptic number.

It is an amenable number.

379584085 is a deficient number, since it is larger than the sum of its proper divisors (75916823).

379584085 is an equidigital number, since it uses as much as digits as its factorization.

379584085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75916822.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 379584085 is about 19482.9177742965. The cubic root of 379584085 is about 724.0512902066.

The spelling of 379584085 in words is "three hundred seventy-nine million, five hundred eighty-four thousand, eighty-five".

Divisors: 1 5 75916817 379584085