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530221131 = 32119115879
BaseRepresentation
bin11111100110101…
…000100001001011
31100221201000122200
4133212220201023
52041214034011
6124340251243
716065543126
oct3746504113
91327630580
10530221131
11252328a90
121296a0b23
1385b0691b
14505c13bd
1531837856
hex1f9a884b

530221131 has 24 divisors (see below), whose sum is σ = 836559360. Its totient is φ = 320938800.

The previous prime is 530221121. The next prime is 530221207. The reversal of 530221131 is 131122035.

530221131 is a `hidden beast` number, since 530 + 2 + 2 + 1 + 131 = 666.

It is not a de Polignac number, because 530221131 - 26 = 530221067 is a prime.

It is a super-2 number, since 2×5302211312 = 562268895517838322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530221121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87250 + ... + 93128.

It is an arithmetic number, because the mean of its divisors is an integer number (34856640).

Almost surely, 2530221131 is an apocalyptic number.

530221131 is a deficient number, since it is larger than the sum of its proper divisors (306338229).

530221131 is a wasteful number, since it uses less digits than its factorization.

530221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807 (or 6804 counting only the distinct ones).

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

The square root of 530221131 is about 23026.5310240166. The cubic root of 530221131 is about 809.3797675385.

Adding to 530221131 its reverse (131122035), we get a palindrome (661343166).

The spelling of 530221131 in words is "five hundred thirty million, two hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 9 11 33 99 911 2733 5879 8199 10021 17637 30063 52911 64669 90189 194007 582021 5355769 16067307 48201921 58913459 176740377 530221131