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5731047 = 33730323
BaseRepresentation
bin10101110111001011100111
3101210011112000
4111313023213
52431343142
6322500343
766466410
oct25671347
911704460
105731047
113264903
121b046b3
13125876a
14a92807
1578314c
hex5772e7

5731047 has 16 divisors (see below), whose sum is σ = 9703680. Its totient is φ = 3274776.

The previous prime is 5731013. The next prime is 5731079. The reversal of 5731047 is 7401375.

It is not a de Polignac number, because 5731047 - 26 = 5730983 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

5731047 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5731047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5731087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14973 + ... + 15350.

It is an arithmetic number, because the mean of its divisors is an integer number (606480).

Almost surely, 25731047 is an apocalyptic number.

5731047 is a deficient number, since it is larger than the sum of its proper divisors (3972633).

5731047 is a wasteful number, since it uses less digits than its factorization.

5731047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30339 (or 30333 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 5731047 is about 2393.9605259904. The cubic root of 5731047 is about 178.9553377332.

The spelling of 5731047 in words is "five million, seven hundred thirty-one thousand, forty-seven".

Divisors: 1 3 7 9 21 27 63 189 30323 90969 212261 272907 636783 818721 1910349 5731047