Search a number
-
+
7082388 = 22321131741
BaseRepresentation
bin11011000001000110010100
3111022211012200
4123001012110
53303114023
6411444500
7114125235
oct33010624
914284180
107082388
113aa8115
122456730
13160c881
14d2508c
1594d743
hex6c1194

7082388 has 36 divisors (see below), whose sum is σ = 18071508. Its totient is φ = 2338560.

The previous prime is 7082377. The next prime is 7082389. The reversal of 7082388 is 8832807.

It can be written as a sum of positive squares in 2 ways, for example, as 49284 + 7033104 = 222^2 + 2652^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7082389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3198 + ... + 4938.

Almost surely, 27082388 is an apocalyptic number.

It is an amenable number.

7082388 is an abundant number, since it is smaller than the sum of its proper divisors (10989120).

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

7082388 is a wasteful number, since it uses less digits than its factorization.

7082388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 7082388 is about 2661.2756339771. The cubic root of 7082388 is about 192.0406814839.

The spelling of 7082388 in words is "seven million, eighty-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 113 226 339 452 678 1017 1356 1741 2034 3482 4068 5223 6964 10446 15669 20892 31338 62676 196733 393466 590199 786932 1180398 1770597 2360796 3541194 7082388