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531343124 = 221361716561
BaseRepresentation
bin11111101010111…
…010011100010100
31101000211000201222
4133222322130110
52042010434444
6124420305512
716111225214
oct3752723424
91330730658
10531343124
11252a24a54
12129b42298
138610a520
14507d4244
15319a9eee
hex1faba714

531343124 has 24 divisors (see below), whose sum is σ = 1003060968. Its totient is φ = 244823040.

The previous prime is 531343117. The next prime is 531343139. The reversal of 531343124 is 421343135.

It can be written as a sum of positive squares in 4 ways, for example, as 79780624 + 451562500 = 8932^2 + 21250^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 531343093 and 531343102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23804 + ... + 40364.

It is an arithmetic number, because the mean of its divisors is an integer number (41794207).

Almost surely, 2531343124 is an apocalyptic number.

It is an amenable number.

531343124 is a deficient number, since it is larger than the sum of its proper divisors (471717844).

531343124 is a wasteful number, since it uses less digits than its factorization.

531343124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17195 (or 17193 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 531343124 is about 23050.8811979065. The cubic root of 531343124 is about 809.9502707874.

Adding to 531343124 its reverse (421343135), we get a palindrome (952686259).

The spelling of 531343124 in words is "five hundred thirty-one million, three hundred forty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 617 1234 2468 8021 16042 16561 32084 33122 66244 215293 430586 861172 10218137 20436274 40872548 132835781 265671562 531343124