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12387725134 = 237167401691
BaseRepresentation
bin10111000100101110…
…11010111101001110
31011222022200122020121
423202113122331032
5200332224201014
65405115535154
7615656632501
oct134227327516
934868618217
1012387725134
115287603274
12249875a4ba
131225598c95
14857309138
154c780c124
hex2e25daf4e

12387725134 has 8 divisors (see below), whose sum is σ = 19083792888. Its totient is φ = 6026460840.

The previous prime is 12387725131. The next prime is 12387725143. The reversal of 12387725134 is 43152778321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×123877251343 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387725131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83700772 + ... + 83700919.

It is an arithmetic number, because the mean of its divisors is an integer number (2385474111).

Almost surely, 212387725134 is an apocalyptic number.

12387725134 is a deficient number, since it is larger than the sum of its proper divisors (6696067754).

12387725134 is a wasteful number, since it uses less digits than its factorization.

12387725134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167401730.

The product of its digits is 282240, while the sum is 43.

The spelling of 12387725134 in words is "twelve billion, three hundred eighty-seven million, seven hundred twenty-five thousand, one hundred thirty-four".

Divisors: 1 2 37 74 167401691 334803382 6193862567 12387725134