Search a number
-
+
47034289681 = 311517235151
BaseRepresentation
bin101011110011011101…
…100100111000010001
311111101220022110212221
4223303131210320101
51232311234232211
633335100021041
73253360602661
oct536335447021
9144356273787
1047034289681
1118a466a2a95
129147831781
134587502b52
1423c28d21a1
151354325c71
hexaf3764e11

47034289681 has 4 divisors (see below), whose sum is σ = 48551524864. Its totient is φ = 45517054500.

The previous prime is 47034289639. The next prime is 47034289697. The reversal of 47034289681 is 18698243074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47034289681 - 219 = 47033765393 is a prime.

It is a super-4 number, since 4×470342896814 (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47034289781) 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, 758617545 + ... + 758617606.

It is an arithmetic number, because the mean of its divisors is an integer number (12137881216).

Almost surely, 247034289681 is an apocalyptic number.

It is an amenable number.

47034289681 is a deficient number, since it is larger than the sum of its proper divisors (1517235183).

47034289681 is a wasteful number, since it uses less digits than its factorization.

47034289681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517235182.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 47034289681 in words is "forty-seven billion, thirty-four million, two hundred eighty-nine thousand, six hundred eighty-one".

Divisors: 1 31 1517235151 47034289681