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6989125 = 5311131723
BaseRepresentation
bin11010101010010101000101
3111011002021111
4122222111011
53242123000
6405445021
7113256313
oct32522505
914132244
106989125
113a44040
122410771
1315a92a0
14cdd0b3
15930cba
hex6aa545

6989125 has 64 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 4224000.

The previous prime is 6989123. The next prime is 6989137. The reversal of 6989125 is 5219896.

It is not a de Polignac number, because 6989125 - 21 = 6989123 is a prime.

6989125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989123) 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 63 ways as a sum of consecutive naturals, for example, 303864 + ... + 303886.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

Almost surely, 26989125 is an apocalyptic number.

6989125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6989125 is a deficient number, since it is larger than the sum of its proper divisors (4332731).

6989125 is a wasteful number, since it uses less digits than its factorization.

6989125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 69 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 6989125 is about 2643.6953304040. The cubic root of 6989125 is about 191.1940044250.

The spelling of 6989125 in words is "six million, nine hundred eighty-nine thousand, one hundred twenty-five".

Divisors: 1 5 11 13 17 23 25 55 65 85 115 125 143 187 221 253 275 299 325 391 425 575 715 935 1105 1265 1375 1495 1625 1955 2125 2431 2875 3289 3575 4301 4675 5083 5525 6325 7475 9775 12155 16445 17875 21505 23375 25415 27625 31625 37375 48875 55913 60775 82225 107525 127075 279565 303875 411125 537625 635375 1397825 6989125