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6916045 = 51383209
BaseRepresentation
bin11010011000011111001101
3111000101000211
4122120133031
53232303140
6404122421
7112533253
oct32303715
914011024
106916045
1139a4144
122396411
131581c46
14cc05d3
159192ea
hex6987cd

6916045 has 4 divisors (see below), whose sum is σ = 8299260. Its totient is φ = 5532832.

The previous prime is 6916033. The next prime is 6916051. The reversal of 6916045 is 5406196.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4137156 + 2778889 = 2034^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 6916045 - 211 = 6913997 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

6916045 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6915998 and 6916016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691600 + ... + 691609.

It is an arithmetic number, because the mean of its divisors is an integer number (2074815).

Almost surely, 26916045 is an apocalyptic number.

It is an amenable number.

6916045 is a deficient number, since it is larger than the sum of its proper divisors (1383215).

6916045 is a wasteful number, since it uses less digits than its factorization.

6916045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383214.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6916045 is about 2629.8374474480. The cubic root of 6916045 is about 190.5252777703.

It can be divided in two parts, 6 and 916045, that multiplied together give a triangular number (5496270 = T3315).

The spelling of 6916045 in words is "six million, nine hundred sixteen thousand, forty-five".

Divisors: 1 5 1383209 6916045