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525431244 = 2231319269659
BaseRepresentation
bin11111010100010…
…111000111001100
31100121200200011110
4133110113013030
52034002244434
6124045452020
716010043342
oct3724270714
91317620143
10525431244
1124a6572a8
12127b71010
1384b1a680
144dad5992
15311dd4e9
hex1f5171cc

525431244 has 96 divisors (see below), whose sum is σ = 1397088000. Its totient is φ = 152361216.

The previous prime is 525431239. The next prime is 525431267. The reversal of 525431244 is 442134525.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796987 + ... + 797645.

It is an arithmetic number, because the mean of its divisors is an integer number (14553000).

Almost surely, 2525431244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525431244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698544000).

525431244 is an abundant number, since it is smaller than the sum of its proper divisors (871656756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525431244 is a wasteful number, since it uses less digits than its factorization.

525431244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 965 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 525431244 is about 22922.2870586685. The cubic root of 525431244 is about 806.9351455523.

Adding to 525431244 its reverse (442134525), we get a palindrome (967565769).

The spelling of 525431244 in words is "five hundred twenty-five million, four hundred thirty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 269 494 538 659 741 807 988 1076 1318 1482 1614 1977 2636 2964 3228 3497 3954 5111 6994 7908 8567 10222 10491 12521 13988 15333 17134 20444 20982 25042 25701 30666 34268 37563 41964 50084 51402 61332 66443 75126 102804 132886 150252 162773 177271 199329 265772 325546 354542 398658 488319 531813 651092 709084 797316 976638 1063626 1953276 2127252 2304523 3368149 4609046 6736298 6913569 9218092 10104447 13472596 13827138 20208894 27654276 40417788 43785937 87571874 131357811 175143748 262715622 525431244