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5209407 = 33743641
BaseRepresentation
bin10011110111110100111111
3100210122222000
4103313310333
52313200112
6303353343
762164530
oct23676477
910718860
105209407
112a389a5
1218b2853
1311051b8
14998687
156cd7dc
hex4f7d3f

5209407 has 32 divisors (see below), whose sum is σ = 9039360. Its totient is φ = 2903040.

The previous prime is 5209403. The next prime is 5209409. The reversal of 5209407 is 7049025.

It is not a de Polignac number, because 5209407 - 22 = 5209403 is a prime.

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

It is the 55-th Perrin number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7807 + ... + 8447.

It is an arithmetic number, because the mean of its divisors is an integer number (282480).

Almost surely, 25209407 is an apocalyptic number.

5209407 is a deficient number, since it is larger than the sum of its proper divisors (3829953).

5209407 is a wasteful number, since it uses less digits than its factorization.

5209407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 5209407 is about 2282.4125393977. The cubic root of 5209407 is about 173.3522287915.

The spelling of 5209407 in words is "five million, two hundred nine thousand, four hundred seven".

Divisors: 1 3 7 9 21 27 43 63 129 189 301 387 641 903 1161 1923 2709 4487 5769 8127 13461 17307 27563 40383 82689 121149 192941 248067 578823 744201 1736469 5209407