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6761985 = 35450799
BaseRepresentation
bin11001110010111000000001
3110201112200220
4121302320001
53212340420
6400533253
7111322146
oct31627001
913645626
106761985
1138a941a
122321229
131529a99
14c803cd
158d8840
hex672e01

6761985 has 8 divisors (see below), whose sum is σ = 10819200. Its totient is φ = 3606384.

The previous prime is 6761983. The next prime is 6762001. The reversal of 6761985 is 5891676.

6761985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6761985 - 21 = 6761983 is a prime.

It is a super-2 number, since 2×67619852 = 91448882280450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

6761985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6761981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225385 + ... + 225414.

It is an arithmetic number, because the mean of its divisors is an integer number (1352400).

Almost surely, 26761985 is an apocalyptic number.

It is an amenable number.

6761985 is a deficient number, since it is larger than the sum of its proper divisors (4057215).

6761985 is a wasteful number, since it uses less digits than its factorization.

6761985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450807.

The product of its digits is 90720, while the sum is 42.

The square root of 6761985 is about 2600.3817027506. The cubic root of 6761985 is about 189.0999443400.

The spelling of 6761985 in words is "six million, seven hundred sixty-one thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 450799 1352397 2253995 6761985