Search a number
-
+
7080840 = 23325131789
BaseRepresentation
bin11011000000101110001000
3111022202002100
4123000232020
53303041330
6411433400
7114120564
oct33005610
914282070
107080840
113aa6a38
122455860
13160bc60
14d246a4
1594d060
hex6c0b88

7080840 has 192 divisors, whose sum is σ = 26535600. Its totient is φ = 1622016.

The previous prime is 7080839. The next prime is 7080847. The reversal of 7080840 is 480807.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1633284 + 5447556 = 1278^2 + 2334^2 .

It is not an unprimeable number, because it can be changed into a prime (7080847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79516 + ... + 79604.

Almost surely, 27080840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7080840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13267800).

7080840 is an abundant number, since it is smaller than the sum of its proper divisors (19454760).

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

7080840 is a wasteful number, since it uses less digits than its factorization.

7080840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 7080840 is about 2660.9847801143. The cubic root of 7080840 is about 192.0266889983.

The spelling of 7080840 in words is "seven million, eighty thousand, eight hundred forty".