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5672681 = 72115769
BaseRepresentation
bin10101101000111011101001
3101200012110022
4111220323221
52423011211
6321330225
766134300
oct25507351
911605408
105672681
113224a73
121a96975
131238021
14a79437
15770bdb
hex568ee9

5672681 has 6 divisors (see below), whose sum is σ = 6598890. Its totient is φ = 4862256.

The previous prime is 5672677. The next prime is 5672707. The reversal of 5672681 is 1862765.

It can be written as a sum of positive squares in only one way, i.e., 5664400 + 8281 = 2380^2 + 91^2 .

It is not a de Polignac number, because 5672681 - 22 = 5672677 is a prime.

It is a super-2 number, since 2×56726812 = 64358619455522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5672671) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 57836 + ... + 57933.

It is an arithmetic number, because the mean of its divisors is an integer number (1099815).

Almost surely, 25672681 is an apocalyptic number.

It is an amenable number.

5672681 is a deficient number, since it is larger than the sum of its proper divisors (926209).

5672681 is a wasteful number, since it uses less digits than its factorization.

5672681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115783 (or 115776 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 5672681 is about 2381.7390705113. The cubic root of 5672681 is about 178.3457593655.

The spelling of 5672681 in words is "five million, six hundred seventy-two thousand, six hundred eighty-one".

Divisors: 1 7 49 115769 810383 5672681