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530231351442 = 231323733234253
BaseRepresentation
bin1111011011101000100…
…00000101100010010010
31212200121201211111010120
413231310100011202102
532141403211221232
61043330202011110
753210425060242
oct7556420054222
91780551744116
10530231351442
11194962858271
12869194a6a96
133b001426300
141b940291b22
15dbd4c0a92c
hex7b74405892

530231351442 has 96 divisors (see below), whose sum is σ = 1179979420608. Its totient is φ = 158653617408.

The previous prime is 530231351417. The next prime is 530231351443. The reversal of 530231351442 is 244153132035.

It is a super-2 number, since 2×5302313514422 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530231351443) 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 47 ways as a sum of consecutive naturals, for example, 124670188 + ... + 124674440.

It is an arithmetic number, because the mean of its divisors is an integer number (12291452298).

Almost surely, 2530231351442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530231351442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589989710304).

530231351442 is an abundant number, since it is smaller than the sum of its proper divisors (649748069166).

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

530231351442 is a wasteful number, since it uses less digits than its factorization.

530231351442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644 (or 7631 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 530231351442 its reverse (244153132035), we get a palindrome (774384483477).

The spelling of 530231351442 in words is "five hundred thirty billion, two hundred thirty-one million, three hundred fifty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 37 39 74 78 111 169 222 338 481 507 962 1014 1443 2886 3323 4253 6253 6646 8506 9969 12506 12759 18759 19938 25518 37518 43199 55289 86398 110578 122951 129597 157361 165867 245902 259194 314722 331734 368853 472083 561587 718757 737706 944166 1123174 1437514 1598363 1684761 2045693 2156271 3196726 3369522 4091386 4312542 4795089 6137079 9590178 12274158 14132719 20778719 26594009 28265438 41557438 42398157 53188018 62336157 79782027 84796314 124672314 159564054 183725347 367450694 522910603 551176041 1045821206 1102352082 1568731809 2388429511 3137463618 4776859022 6797837839 7165288533 13595675678 14330577066 20393513517 40787027034 88371891907 176743783814 265115675721 530231351442