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5311431 = 321989349
BaseRepresentation
bin10100010000101111000111
3100222211220200
4110100233013
52324431211
6305501543
763101136
oct24205707
910884820
105311431
112aa8614
1219418b3
13113c778
149c391d
156edb56
hex510bc7

5311431 has 24 divisors (see below), whose sum is σ = 8190000. Its totient is φ = 3307392.

The previous prime is 5311417. The next prime is 5311441. The reversal of 5311431 is 1341135.

It is not a de Polignac number, because 5311431 - 27 = 5311303 is a prime.

It is a super-2 number, since 2×53114312 = 56422598535522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15045 + ... + 15393.

It is an arithmetic number, because the mean of its divisors is an integer number (341250).

Almost surely, 25311431 is an apocalyptic number.

5311431 is a deficient number, since it is larger than the sum of its proper divisors (2878569).

5311431 is a wasteful number, since it uses less digits than its factorization.

5311431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 460 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 5311431 is about 2304.6542039968. The cubic root of 5311431 is about 174.4765966703.

Adding to 5311431 its reverse (1341135), we get a palindrome (6652566).

The spelling of 5311431 in words is "five million, three hundred eleven thousand, four hundred thirty-one".

Divisors: 1 3 9 19 57 89 171 267 349 801 1047 1691 3141 5073 6631 15219 19893 31061 59679 93183 279549 590159 1770477 5311431