Search a number
-
+
379943929 = 616228589
BaseRepresentation
bin10110101001010…
…111101111111001
3222110221011002101
4112221113233321
51234231201204
6101411303401
712262320151
oct2651275771
9873834071
10379943929
11185517552
12a72aab61
136093b7c1
1438663761
1523550ea4
hex16a57bf9

379943929 has 4 divisors (see below), whose sum is σ = 386172580. Its totient is φ = 373715280.

The previous prime is 379943887. The next prime is 379943951. The reversal of 379943929 is 929349973.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145853929 + 234090000 = 12077^2 + 15300^2 .

It is not a de Polignac number, because 379943929 - 217 = 379812857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 379943929.

It is not an unprimeable number, because it can be changed into a prime (379943989) 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, 3114234 + ... + 3114355.

It is an arithmetic number, because the mean of its divisors is an integer number (96543145).

Almost surely, 2379943929 is an apocalyptic number.

It is an amenable number.

379943929 is a deficient number, since it is larger than the sum of its proper divisors (6228651).

379943929 is an equidigital number, since it uses as much as digits as its factorization.

379943929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228650.

The product of its digits is 3306744, while the sum is 55.

The square root of 379943929 is about 19492.1504457564. The cubic root of 379943929 is about 724.2800170633.

The spelling of 379943929 in words is "three hundred seventy-nine million, nine hundred forty-three thousand, nine hundred twenty-nine".

Divisors: 1 61 6228589 379943929