Search a number
-
+
52181258152149 = 327828273938923
BaseRepresentation
bin10111101110101011001010…
…10110110010100011010101
320211202110221121012021122100
423313111211112302203111
523314414204041332044
6302551423345352313
713663654135664310
oct1367254526624325
9224673847167570
1052181258152149
1115698a46956415
125a290b1938699
132316896473bc9
14cc582cddd977
1560754aa1b869
hex2f75655b28d5

52181258152149 has 12 divisors (see below), whose sum is σ = 86140489648096. Its totient is φ = 29817861801192.

The previous prime is 52181258151941. The next prime is 52181258152201. The reversal of 52181258152149 is 94125185218125.

52181258152149 is a `hidden beast` number, since 5 + 2 + 1 + 8 + 1 + 2 + 581 + 52 + 1 + 4 + 9 = 666.

It is not a de Polignac number, because 52181258152149 - 228 = 52180989716693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52181258152095 and 52181258152104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52181258154149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414136969399 + ... + 414136969524.

Almost surely, 252181258152149 is an apocalyptic number.

It is an amenable number.

52181258152149 is a deficient number, since it is larger than the sum of its proper divisors (33959231495947).

52181258152149 is a wasteful number, since it uses less digits than its factorization.

52181258152149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828273938936 (or 828273938933 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 54.

The spelling of 52181258152149 in words is "fifty-two trillion, one hundred eighty-one billion, two hundred fifty-eight million, one hundred fifty-two thousand, one hundred forty-nine".

Divisors: 1 3 7 9 21 63 828273938923 2484821816769 5797917572461 7454465450307 17393752717383 52181258152149