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12530125231146 = 232696118068397
BaseRepresentation
bin1011011001010110010110…
…1010011101010000101010
31122100212102222020010020200
42312111211222131100222
53120243144024344041
642352132101333030
72432162120100165
oct266254552352052
948325388203220
1012530125231146
113aa0aa6040346
1214a4509707176
136cb77cb3b703
14314665b28adc
1516ae0d6681b6
hexb6565a9d42a

12530125231146 has 12 divisors (see below), whose sum is σ = 27148604667522. Its totient is φ = 4176708410376.

The previous prime is 12530125231133. The next prime is 12530125231147. The reversal of 12530125231146 is 64113252103521.

12530125231146 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 0 + 12 + 523 + 114 + 6 = 666.

12530125231146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6372903340521 + 6157221890625 = 2524461^2 + 2481375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12530125231146.

It is not an unprimeable number, because it can be changed into a prime (12530125231147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348059034181 + ... + 348059034216.

Almost surely, 212530125231146 is an apocalyptic number.

12530125231146 is an abundant number, since it is smaller than the sum of its proper divisors (14618479436376).

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

12530125231146 is a wasteful number, since it uses less digits than its factorization.

12530125231146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696118068405 (or 696118068402 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 12530125231146 its reverse (64113252103521), we get a palindrome (76643377334667).

The spelling of 12530125231146 in words is "twelve trillion, five hundred thirty billion, one hundred twenty-five million, two hundred thirty-one thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 696118068397 1392236136794 2088354205191 4176708410382 6265062615573 12530125231146