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530234420 = 2251737113373
BaseRepresentation
bin11111100110101…
…011110000110100
31100221201200212212
4133212223300310
52041220000140
6124340432552
716065626642
oct3746536064
91327650785
10530234420
11252337a71
121296a8758
1385b0c9a1
14505c6192
153183b765
hex1f9abc34

530234420 has 96 divisors (see below), whose sum is σ = 1224847008. Its totient is φ = 191987712.

The previous prime is 530234413. The next prime is 530234423. The reversal of 530234420 is 24432035.

It can be written as a sum of positive squares in 16 ways, for example, as 77651344 + 452583076 = 8812^2 + 21274^2 .

It is a super-2 number, since 2×5302344202 = 562297080305472800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530234423) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1421354 + ... + 1421726.

It is an arithmetic number, because the mean of its divisors is an integer number (12758823).

Almost surely, 2530234420 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 530234420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612423504).

530234420 is an abundant number, since it is smaller than the sum of its proper divisors (694612588).

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

530234420 is a wasteful number, since it uses less digits than its factorization.

530234420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 530234420 is about 23026.8195806542. The cubic root of 530234420 is about 809.3865293449.

Adding to 530234420 its reverse (24432035), we get a palindrome (554666455).

The spelling of 530234420 in words is "five hundred thirty million, two hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 37 68 74 85 113 148 170 185 226 340 370 373 452 565 629 740 746 1130 1258 1492 1865 1921 2260 2516 3145 3730 3842 4181 6290 6341 7460 7684 8362 9605 12580 12682 13801 16724 19210 20905 25364 27602 31705 38420 41810 42149 55204 63410 69005 71077 83620 84298 126820 138010 142154 168596 210745 234617 276020 284308 355385 421490 469234 710770 716533 842980 938468 1173085 1421540 1433066 1559513 2346170 2866132 3119026 3582665 4692340 6238052 7165330 7797565 14330660 15595130 26511721 31190260 53023442 106046884 132558605 265117210 530234420