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6981330 = 235232711
BaseRepresentation
bin11010101000011011010010
3111010200120210
4122220123102
53241400310
6405344550
7113224506
oct32503322
914120523
106981330
113a391a4
122408156
1315a5885
14cda306
1592d820
hex6a86d2

6981330 has 16 divisors (see below), whose sum is σ = 16755264. Its totient is φ = 1861680.

The previous prime is 6981329. The next prime is 6981349. The reversal of 6981330 is 331896.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 232711 = 6981330 / (6 + 9 + 8 + 1 + 3 + 3 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116326 + ... + 116385.

It is an arithmetic number, because the mean of its divisors is an integer number (1047204).

Almost surely, 26981330 is an apocalyptic number.

6981330 is an abundant number, since it is smaller than the sum of its proper divisors (9773934).

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

6981330 is a wasteful number, since it uses less digits than its factorization.

6981330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232721.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6981330 is about 2642.2206569475. The cubic root of 6981330 is about 191.1228981623.

The spelling of 6981330 in words is "six million, nine hundred eighty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 232711 465422 698133 1163555 1396266 2327110 3490665 6981330