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6985530 = 232577617
BaseRepresentation
bin11010101001011100111010
3111010220100100
4122221130322
53242014110
6405420230
7113242656
oct32513472
914126310
106985530
113a41372
12240a676
1315a7766
14cdba66
1592ebc0
hex6a973a

6985530 has 24 divisors (see below), whose sum is σ = 18162612. Its totient is φ = 1862784.

The previous prime is 6985523. The next prime is 6985553. The reversal of 6985530 is 355896.

It can be written as a sum of positive squares in 2 ways, for example, as 6985449 + 81 = 2643^2 + 9^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 38719 + ... + 38898.

Almost surely, 26985530 is an apocalyptic number.

6985530 is an abundant number, since it is smaller than the sum of its proper divisors (11177082).

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

6985530 is a wasteful number, since it uses less digits than its factorization.

6985530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77630 (or 77627 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 6985530 is about 2643.0153234516. The cubic root of 6985530 is about 191.1612172817.

The spelling of 6985530 in words is "six million, nine hundred eighty-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 77617 155234 232851 388085 465702 698553 776170 1164255 1397106 2328510 3492765 6985530