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6660160 = 265131601
BaseRepresentation
bin11001011010000001000000
3110112101000121
4121122001000
53201111120
6354430024
7110416243
oct31320100
913471017
106660160
113839971
122292314
1314c2630
14c5525a
158b85aa
hex65a040

6660160 has 56 divisors (see below), whose sum is σ = 17090136. Its totient is φ = 2457600.

The previous prime is 6660119. The next prime is 6660161. The reversal of 6660160 is 610666.

It can be written as a sum of positive squares in 4 ways, for example, as 1498176 + 5161984 = 1224^2 + 2272^2 .

It is not an unprimeable number, because it can be changed into a prime (6660161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3360 + ... + 4960.

It is an arithmetic number, because the mean of its divisors is an integer number (305181).

Almost surely, 26660160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6660160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8545068).

6660160 is an abundant number, since it is smaller than the sum of its proper divisors (10429976).

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

6660160 is a wasteful number, since it uses less digits than its factorization.

6660160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 6660160 is about 2580.7285792969. The cubic root of 6660160 is about 188.1459557676.

The spelling of 6660160 in words is "six million, six hundred sixty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 1601 2080 3202 4160 6404 8005 12808 16010 20813 25616 32020 41626 51232 64040 83252 102464 104065 128080 166504 208130 256160 333008 416260 512320 666016 832520 1332032 1665040 3330080 6660160