Search a number
-
+
15125650249 = 131881131059
BaseRepresentation
bin11100001011000111…
…10001101101001001
31110001010120122102111
432011203301231021
5221434131301444
610540523102321
71043553622453
oct160543615511
943033518374
1015125650249
1164620429a6
122b216719a1
1315708a0a08
14a36bb12d3
155d7d84234
hex3858f1b49

15125650249 has 8 divisors (see below), whose sum is σ = 15258529440. Its totient is φ = 14993035200.

The previous prime is 15125650247. The next prime is 15125650277. The reversal of 15125650249 is 94205652151.

15125650249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 15125650249 - 21 = 15125650247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15125650247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49882 + ... + 180940.

It is an arithmetic number, because the mean of its divisors is an integer number (1907316180).

Almost surely, 215125650249 is an apocalyptic number.

It is an amenable number.

15125650249 is a deficient number, since it is larger than the sum of its proper divisors (132879191).

15125650249 is a wasteful number, since it uses less digits than its factorization.

15125650249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132071.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 15125650249 in words is "fifteen billion, one hundred twenty-five million, six hundred fifty thousand, two hundred forty-nine".

Divisors: 1 131 881 115411 131059 17168729 115462979 15125650249