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6984140 = 225349207
BaseRepresentation
bin11010101001000111001100
3111010211102212
4122221013030
53241443030
6405405552
7113235632
oct32510714
914124385
106984140
113a40319
1224098b8
1315a6c37
14cdb352
1592e595
hex6a91cc

6984140 has 12 divisors (see below), whose sum is σ = 14666736. Its totient is φ = 2793648.

The previous prime is 6984139. The next prime is 6984143. The reversal of 6984140 is 414896.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6984097 and 6984106.

It is not an unprimeable number, because it can be changed into a prime (6984143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 174584 + ... + 174623.

It is an arithmetic number, because the mean of its divisors is an integer number (1222228).

Almost surely, 26984140 is an apocalyptic number.

It is an amenable number.

6984140 is an abundant number, since it is smaller than the sum of its proper divisors (7682596).

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

6984140 is a wasteful number, since it uses less digits than its factorization.

6984140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349216 (or 349214 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6984140 is about 2642.7523531349. The cubic root of 6984140 is about 191.1485371788.

The spelling of 6984140 in words is "six million, nine hundred eighty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 349207 698414 1396828 1746035 3492070 6984140