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6612140 = 225330607
BaseRepresentation
bin11001001110010010101100
3110102221011002
4121032102230
53143042030
6353415432
7110126243
oct31162254
913387132
106612140
113806887
12226a578
1314a6812
14c4195a
158a9245
hex64e4ac

6612140 has 12 divisors (see below), whose sum is σ = 13885536. Its totient is φ = 2644848.

The previous prime is 6612127. The next prime is 6612143. The reversal of 6612140 is 412166.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 330607 = 6612140 / (6 + 6 + 1 + 2 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (6612143) 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, 165284 + ... + 165323.

It is an arithmetic number, because the mean of its divisors is an integer number (1157128).

Almost surely, 26612140 is an apocalyptic number.

It is an amenable number.

6612140 is an abundant number, since it is smaller than the sum of its proper divisors (7273396).

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

6612140 is a wasteful number, since it uses less digits than its factorization.

6612140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330616 (or 330614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 6612140 is about 2571.4081745223. The cubic root of 6612140 is about 187.6926848820.

The spelling of 6612140 in words is "six million, six hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 330607 661214 1322428 1653035 3306070 6612140