Search a number
-
+
7890395 = 58319013
BaseRepresentation
bin11110000110010111011011
3112211212120212
4132012113123
54004443040
6441041335
7124032032
oct36062733
915755525
107890395
1144aa197
12278624b
131833596
141095719
15a5cd65
hex7865db

7890395 has 8 divisors (see below), whose sum is σ = 9583056. Its totient is φ = 6235936.

The previous prime is 7890391. The next prime is 7890413. The reversal of 7890395 is 5930987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7890395 - 22 = 7890391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7890391) 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, 9092 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (1197882).

Almost surely, 27890395 is an apocalyptic number.

7890395 is a deficient number, since it is larger than the sum of its proper divisors (1692661).

7890395 is a wasteful number, since it uses less digits than its factorization.

7890395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19101.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 7890395 is about 2808.9846920195. The cubic root of 7890395 is about 199.0824216882.

The spelling of 7890395 in words is "seven million, eight hundred ninety thousand, three hundred ninety-five".

Divisors: 1 5 83 415 19013 95065 1578079 7890395