Search a number
-
+
51770864118 = 23192081218227
BaseRepresentation
bin110000001101110010…
…001011000111110110
311221122000000101111210
4300031302023013312
51322011320122433
635441101142250
73511634040621
oct601562130766
9157560011453
1051770864118
111aa57337516
12a049b5a986
134b608cb20c
1427119c0db8
151530095463
hexc0dc8b1f6

51770864118 has 32 divisors (see below), whose sum is σ = 109044167040. Its totient is φ = 16340762880.

The previous prime is 51770864083. The next prime is 51770864143. The reversal of 51770864118 is 81146807715.

51770864118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128121 + ... + 346347.

It is an arithmetic number, because the mean of its divisors is an integer number (3407630220).

Almost surely, 251770864118 is an apocalyptic number.

51770864118 is an abundant number, since it is smaller than the sum of its proper divisors (57273302922).

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

51770864118 is a wasteful number, since it uses less digits than its factorization.

51770864118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220332.

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 51770864118 in words is "fifty-one billion, seven hundred seventy million, eight hundred sixty-four thousand, one hundred eighteen".

Divisors: 1 2 3 6 19 38 57 114 2081 4162 6243 12486 39539 79078 118617 218227 237234 436454 654681 1309362 4146313 8292626 12438939 24877878 454130387 908260774 1362391161 2724782322 8628477353 17256954706 25885432059 51770864118