Search a number
-
+
7995331 = 61131071
BaseRepresentation
bin11110011111111111000011
3120001012112101
4132133333003
54021322311
6443211231
7124650001
oct36377703
916035471
107995331
114571013
122816b17
13186c286
1410c1a71
15a7dec1
hex79ffc3

7995331 has 4 divisors (see below), whose sum is σ = 8126464. Its totient is φ = 7864200.

The previous prime is 7995319. The next prime is 7995341. The reversal of 7995331 is 1335997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1335997 = 13102769.

It is a cyclic number.

It is not a de Polignac number, because 7995331 - 27 = 7995203 is a prime.

It is a super-3 number, since 3×79953313 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (7995301) 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 3 ways as a sum of consecutive naturals, for example, 65475 + ... + 65596.

It is an arithmetic number, because the mean of its divisors is an integer number (2031616).

Almost surely, 27995331 is an apocalyptic number.

7995331 is a deficient number, since it is larger than the sum of its proper divisors (131133).

7995331 is a wasteful number, since it uses less digits than its factorization.

7995331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131132.

The product of its digits is 25515, while the sum is 37.

The square root of 7995331 is about 2827.6016338940. The cubic root of 7995331 is about 199.9610840949.

The spelling of 7995331 in words is "seven million, nine hundred ninety-five thousand, three hundred thirty-one".

Divisors: 1 61 131071 7995331