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538511064 = 23371331459
BaseRepresentation
bin100000000110010…
…000011011011000
31101112022012022020
4200012100123120
52100324323224
6125234054440
716226161050
oct4006203330
91345265266
10538511064
11256a80373
1213041a420
138774a000
145173c560
1532423c79
hex201906d8

538511064 has 128 divisors (see below), whose sum is σ = 1667904000. Its totient is φ = 141927552.

The previous prime is 538511033. The next prime is 538511119. The reversal of 538511064 is 460115835.

It is a congruent number.

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, 368367 + ... + 369825.

It is an arithmetic number, because the mean of its divisors is an integer number (13030500).

Almost surely, 2538511064 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 538511064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833952000).

538511064 is an abundant number, since it is smaller than the sum of its proper divisors (1129392936).

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

538511064 is a wasteful number, since it uses less digits than its factorization.

538511064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 538511064 is about 23205.8411612249. The cubic root of 538511064 is about 813.5761526779.

Adding to 538511064 its reverse (460115835), we get a palindrome (998626899).

The spelling of 538511064 in words is "five hundred thirty-eight million, five hundred eleven thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 169 182 273 312 338 364 507 546 676 728 1014 1092 1183 1352 1459 2028 2184 2197 2366 2918 3549 4056 4377 4394 4732 5836 6591 7098 8754 8788 9464 10213 11672 13182 14196 15379 17508 17576 18967 20426 26364 28392 30639 30758 35016 37934 40852 46137 52728 56901 61278 61516 75868 81704 92274 113802 122556 123032 132769 151736 184548 227604 245112 246571 265538 369096 398307 455208 493142 531076 739713 796614 986284 1062152 1479426 1593228 1725997 1972568 2958852 3186456 3205423 3451994 5177991 5917704 6410846 6903988 9616269 10355982 12821692 13807976 19232538 20711964 22437961 25643384 38465076 41423928 44875922 67313883 76930152 89751844 134627766 179503688 269255532 538511064