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530433999481 = 197236972
BaseRepresentation
bin1111011100000000101…
…01001000001001111001
31212201010212011001222111
413232000111020021321
532142312100440411
61043402241252321
753215435413661
oct7560025101171
91781125131874
10530433999481
11194a57189791
12869753340a1
133b0343c99a9
141b95d1631a1
15dbe78d9721
hex7b80548279

530433999481 has 9 divisors (see below), whose sum is σ = 533284473549. Its totient is φ = 527598692544.

The previous prime is 530433999463. The next prime is 530433999497. The reversal of 530433999481 is 184999334035.

It is a happy number.

The square root of 530433999481 is 728309.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 13616789481 + 516817210000 = 116691^2 + 718900^2 .

It is not a de Polignac number, because 530433999481 - 223 = 530425610873 is a prime.

It is a super-2 number, since 2×5304339994812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530433999421) 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 8 ways as a sum of consecutive naturals, for example, 143475025 + ... + 143478721.

Almost surely, 2530433999481 is an apocalyptic number.

530433999481 is the 728309-th square number.

530433999481 is the 364155-th centered octagonal number.

It is an amenable number.

530433999481 is a deficient number, since it is larger than the sum of its proper divisors (2850474068).

530433999481 is an frugal number, since it uses more digits than its factorization.

530433999481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7788 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 58.

The spelling of 530433999481 in words is "five hundred thirty billion, four hundred thirty-three million, nine hundred ninety-nine thousand, four hundred eighty-one".

Divisors: 1 197 3697 38809 728309 13667809 143476873 2692558373 530433999481