Search a number
-
+
13875638137625 = 531110397974497
BaseRepresentation
bin1100100111101010110001…
…1110110111001100011001
31211010111110002010202221202
43021322230132313030121
53304314301330401000
645302214040443545
72631324151100165
oct311725436671431
954114402122852
1013875638137625
11446a696a9a830
1216812371795b5
1379860c19a834
1435d827ad7ca5
15190e0d043dd5
hexc9eac7b7319

13875638137625 has 32 divisors (see below), whose sum is σ = 19074459066624. Its totient is φ = 9993398592000.

The previous prime is 13875638137609. The next prime is 13875638137643. The reversal of 13875638137625 is 52673183657831.

It is not a de Polignac number, because 13875638137625 - 24 = 13875638137609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48845624 + ... + 49128873.

It is an arithmetic number, because the mean of its divisors is an integer number (596076845832).

Almost surely, 213875638137625 is an apocalyptic number.

It is an amenable number.

13875638137625 is a deficient number, since it is larger than the sum of its proper divisors (5198820928999).

13875638137625 is a wasteful number, since it uses less digits than its factorization.

13875638137625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97974626 (or 97974616 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 65.

The spelling of 13875638137625 in words is "thirteen trillion, eight hundred seventy-five billion, six hundred thirty-eight million, one hundred thirty-seven thousand, six hundred twenty-five".

Divisors: 1 5 11 25 55 103 125 275 515 1133 1375 2575 5665 12875 28325 141625 97974497 489872485 1077719467 2449362425 5388597335 10091373191 12246812125 26942986675 50456865955 111005105101 134714933375 252284329775 555025525505 1261421648875 2775127627525 13875638137625