Search a number
-
+
6990285 = 35466019
BaseRepresentation
bin11010101010100111001101
3111011010212110
4122222213031
53242142120
6405454233
7113262561
oct32524715
914133773
106990285
113a449a5
122411379
1315a9983
14cdd6a1
159312e0
hex6aa9cd

6990285 has 8 divisors (see below), whose sum is σ = 11184480. Its totient is φ = 3728144.

The previous prime is 6990259. The next prime is 6990289. The reversal of 6990285 is 5820996.

It is a happy number.

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 6990285 - 25 = 6990253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232995 + ... + 233024.

It is an arithmetic number, because the mean of its divisors is an integer number (1398060).

Almost surely, 26990285 is an apocalyptic number.

It is an amenable number.

6990285 is a deficient number, since it is larger than the sum of its proper divisors (4194195).

6990285 is a wasteful number, since it uses less digits than its factorization.

6990285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466027.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 6990285 is about 2643.9147111811. The cubic root of 6990285 is about 191.2045814656.

The spelling of 6990285 in words is "six million, nine hundred ninety thousand, two hundred eighty-five".

Divisors: 1 3 5 15 466019 1398057 2330095 6990285