Search a number
-
+
7320828 = 2231035923
BaseRepresentation
bin11011111011010011111100
3111202221021210
4123323103330
53333231303
6420524420
7116140344
oct33732374
914687253
107320828
114150279
122550710
131694268
14d87d24
15999203
hex6fb4fc

7320828 has 24 divisors (see below), whose sum is σ = 17250688. Its totient is φ = 2416176.

The previous prime is 7320827. The next prime is 7320853. The reversal of 7320828 is 8280237.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7320795 and 7320804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7320821) 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, 1726 + ... + 4197.

Almost surely, 27320828 is an apocalyptic number.

It is an amenable number.

7320828 is an abundant number, since it is smaller than the sum of its proper divisors (9929860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7320828 is a wasteful number, since it uses less digits than its factorization.

7320828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033 (or 6031 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 7320828 is about 2705.7028661699. The cubic root of 7320828 is about 194.1720583602.

The spelling of 7320828 in words is "seven million, three hundred twenty thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 5923 11846 17769 23692 35538 71076 610069 1220138 1830207 2440276 3660414 7320828