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12930489618201 = 32271244232
BaseRepresentation
bin1011110000101001110100…
…1111011000111100011001
31200210010212001110021022100
42330022131033120330121
53143323120320240301
643300103535514013
72503124405166141
oct274123517307431
950703761407270
1012930489618201
114135876324071
12154a022988909
1372a455acc59c
14329ba6461921
1517654203d286
hexbc29d3d8f19

12930489618201 has 27 divisors (see below), whose sum is σ = 18750787791957. Its totient is φ = 8586575304120.

The previous prime is 12930489618161. The next prime is 12930489618203. The reversal of 12930489618201 is 10281698403921.

It is a happy number.

The square root of 12930489618201 is 3595899.

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

12930489618201 is a `hidden beast` number, since 1 + 29 + 3 + 0 + 489 + 61 + 82 + 0 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2k-12930489618201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12930489618203) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2923463676 + ... + 2923468098.

Almost surely, 212930489618201 is an apocalyptic number.

12930489618201 is the 3595899-th square number.

12930489618201 is the 1797950-th centered octagonal number.

It is an amenable number.

12930489618201 is a deficient number, since it is larger than the sum of its proper divisors (5820298173756).

12930489618201 is an frugal number, since it uses more digits than its factorization.

12930489618201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394 (or 4697 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 12930489618201 in words is "twelve trillion, nine hundred thirty billion, four hundred eighty-nine million, six hundred eighteen thousand, two hundred one".

Divisors: 1 3 9 271 813 2439 4423 13269 39807 73441 220323 660969 1198633 3595899 10787697 19562929 58688787 176066361 324829543 974488629 2923465887 5301553759 15904661277 47713983831 1436721068689 4310163206067 12930489618201