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30312423162 = 23273131724481
BaseRepresentation
bin11100001110110000…
…101101111011111010
32220020112011122101100
4130032300231323322
5444034440020122
621531512232230
72122112226360
oct341660557372
986215148340
1030312423162
111194563319a
125a5b69b676
132b21022688
141677b33630
15bc628daac
hex70ec2defa

30312423162 has 96 divisors (see below), whose sum is σ = 77728195584. Its totient is φ = 8354534400.

The previous prime is 30312423157. The next prime is 30312423179. The reversal of 30312423162 is 26132421303.

30312423162 is a `hidden beast` number, since 30 + 312 + 4 + 2 + 316 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1225962 + ... + 1250442.

It is an arithmetic number, because the mean of its divisors is an integer number (809668704).

Almost surely, 230312423162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30312423162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38864097792).

30312423162 is an abundant number, since it is smaller than the sum of its proper divisors (47415772422).

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

30312423162 is a wasteful number, since it uses less digits than its factorization.

30312423162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24844 (or 24841 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 30312423162 its reverse (26132421303), we get a palindrome (56444844465).

The spelling of 30312423162 in words is "thirty billion, three hundred twelve million, four hundred twenty-three thousand, one hundred sixty-two".

Divisors: 1 2 3 6 7 9 14 18 21 31 42 62 63 93 126 186 217 279 317 434 558 634 651 951 1302 1902 1953 2219 2853 3906 4438 5706 6657 9827 13314 19654 19971 24481 29481 39942 48962 58962 68789 73443 88443 137578 146886 171367 176886 206367 220329 342734 412734 440658 514101 619101 758911 1028202 1238202 1517822 1542303 2276733 3084606 4553466 5312377 6830199 7760477 10624754 13660398 15520954 15937131 23281431 31874262 46562862 47811393 54323339 69844293 95622786 108646678 139688586 162970017 240574787 325940034 481149574 488910051 721724361 977820102 1443448722 1684023509 2165173083 3368047018 4330346166 5052070527 10104141054 15156211581 30312423162