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6873990 = 235229133
BaseRepresentation
bin11010001110001110000110
3110221020100020
4122032032012
53224431430
6403200010
7112266534
oct32161606
913836306
106873990
113975592
122376006
131568a66
14cad154
1590bb10
hex68e386

6873990 has 16 divisors (see below), whose sum is σ = 16497648. Its totient is φ = 1833056.

The previous prime is 6873961. The next prime is 6874003. The reversal of 6873990 is 993786.

It is a happy number.

It is a congruent number.

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, 114537 + ... + 114596.

It is an arithmetic number, because the mean of its divisors is an integer number (1031103).

Almost surely, 26873990 is an apocalyptic number.

6873990 is an abundant number, since it is smaller than the sum of its proper divisors (9623658).

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

6873990 is a wasteful number, since it uses less digits than its factorization.

6873990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229143.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 6873990 is about 2621.8295139082. The cubic root of 6873990 is about 190.1383111106.

The spelling of 6873990 in words is "six million, eight hundred seventy-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 229133 458266 687399 1145665 1374798 2291330 3436995 6873990