Search a number
-
+
47885412269 = 172816788957
BaseRepresentation
bin101100100110001100…
…010110011110101101
311120121012211222120202
4230212030112132231
51241032131143034
633555342323245
73313434200642
oct544614263655
9146535758522
1047885412269
1119343080a92
129344889525
134691945096
142463967dc9
1513a3dea47e
hexb263167ad

47885412269 has 4 divisors (see below), whose sum is σ = 50702201244. Its totient is φ = 45068623296.

The previous prime is 47885412257. The next prime is 47885412287. The reversal of 47885412269 is 96221458874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96221458874 = 248110729437.

It can be written as a sum of positive squares in 2 ways, for example, as 41478210244 + 6407202025 = 203662^2 + 80045^2 .

It is not a de Polignac number, because 47885412269 - 232 = 43590444973 is a prime.

It is a super-2 number, since 2×478854122692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47885412229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408394462 + ... + 1408394495.

It is an arithmetic number, because the mean of its divisors is an integer number (12675550311).

Almost surely, 247885412269 is an apocalyptic number.

It is an amenable number.

47885412269 is a deficient number, since it is larger than the sum of its proper divisors (2816788975).

47885412269 is a wasteful number, since it uses less digits than its factorization.

47885412269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816788974.

The product of its digits is 7741440, while the sum is 56.

The spelling of 47885412269 in words is "forty-seven billion, eight hundred eighty-five million, four hundred twelve thousand, two hundred sixty-nine".

Divisors: 1 17 2816788957 47885412269