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5231031 = 313134129
BaseRepresentation
bin10011111101000110110111
3100211202121220
4103331012313
52314343111
6304041423
762314551
oct23750667
910752556
105231031
112a53173
121903273
131111cb0
149a24d1
156d4e06
hex4fd1b7

5231031 has 8 divisors (see below), whose sum is σ = 7511280. Its totient is φ = 3219072.

The previous prime is 5231029. The next prime is 5231041. The reversal of 5231031 is 1301325.

It is a happy number.

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

It is not a de Polignac number, because 5231031 - 21 = 5231029 is a prime.

It is a super-2 number, since 2×52310312 = 54727370645922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5231031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231011) 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, 67026 + ... + 67103.

It is an arithmetic number, because the mean of its divisors is an integer number (938910).

Almost surely, 25231031 is an apocalyptic number.

5231031 is a deficient number, since it is larger than the sum of its proper divisors (2280249).

5231031 is a wasteful number, since it uses less digits than its factorization.

5231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134145.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 5231031 is about 2287.1447265095. The cubic root of 5231031 is about 173.5917566183.

Adding to 5231031 its reverse (1301325), we get a palindrome (6532356).

The spelling of 5231031 in words is "five million, two hundred thirty-one thousand, thirty-one".

Divisors: 1 3 13 39 134129 402387 1743677 5231031