Search a number
-
+
12872975544 = 2335111346307
BaseRepresentation
bin10111111110100101…
…00000010010111000
31020020010202220200000
423333102200102320
5202330440204134
65525212313000
7634001325642
oct137722402270
936203686600
1012872975544
115506506070
1225b3172760
1312a1c886c0
148a1941892
1550520ee99
hex2ff4a04b8

12872975544 has 192 divisors, whose sum is σ = 42477402240. Its totient is φ = 3600754560.

The previous prime is 12872975539. The next prime is 12872975567. The reversal of 12872975544 is 44557927821.

12872975544 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 2 + 97 + 5 + 544 = 666.

12872975544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 254839 + ... + 301145.

It is an arithmetic number, because the mean of its divisors is an integer number (221236470).

Almost surely, 212872975544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12872975544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21238701120).

12872975544 is an abundant number, since it is smaller than the sum of its proper divisors (29604426696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12872975544 is a wasteful number, since it uses less digits than its factorization.

12872975544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46352 (or 46336 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 12872975544 in words is "twelve billion, eight hundred seventy-two million, nine hundred seventy-five thousand, five hundred forty-four".