Search a number
-
+
79725032149 = 788813128239
BaseRepresentation
bin100101000111111111…
…0110111001011010101
321121210011201021000111
41022033332313023111
52301234102012044
6100343012043021
75521442410030
oct1121776671325
9247704637014
1079725032149
11308a177a724
121354b903471
13769718ca49
143c04440017
1521192a6b34
hex128ffb72d5

79725032149 has 8 divisors (see below), whose sum is σ = 91116058880. Its totient is φ = 68334439536.

The previous prime is 79725032119. The next prime is 79725032197. The reversal of 79725032149 is 94123052797.

It is a happy number.

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 79725032149 - 221 = 79722934997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79725032119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557572 + ... + 685810.

It is an arithmetic number, because the mean of its divisors is an integer number (11389507360).

Almost surely, 279725032149 is an apocalyptic number.

It is an amenable number.

79725032149 is a deficient number, since it is larger than the sum of its proper divisors (11391026731).

79725032149 is a wasteful number, since it uses less digits than its factorization.

79725032149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217059.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 79725032149 in words is "seventy-nine billion, seven hundred twenty-five million, thirty-two thousand, one hundred forty-nine".

Divisors: 1 7 88813 128239 621691 897673 11389290307 79725032149