Search a number
-
+
75471293089 = 711062975959
BaseRepresentation
bin100011001001001110…
…0001000101010100001
321012210201112221000101
41012102130020222201
52214031122334324
654400535422401
75311151256313
oct1062234105241
9235721487011
1075471293089
112a0096395a5
1212763224a01
137169b19a9a
14391d5197b3
151e6ab0e944
hex1192708aa1

75471293089 has 4 divisors (see below), whose sum is σ = 76534269120. Its totient is φ = 74408317060.

The previous prime is 75471293063. The next prime is 75471293111. The reversal of 75471293089 is 98039217457.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98039217457 = 162536032069.

It is a cyclic number.

It is not a de Polignac number, because 75471293089 - 211 = 75471291041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75471293189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531487909 + ... + 531488050.

It is an arithmetic number, because the mean of its divisors is an integer number (19133567280).

Almost surely, 275471293089 is an apocalyptic number.

It is an amenable number.

75471293089 is a deficient number, since it is larger than the sum of its proper divisors (1062976031).

75471293089 is a wasteful number, since it uses less digits than its factorization.

75471293089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062976030.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 75471293089 in words is "seventy-five billion, four hundred seventy-one million, two hundred ninety-three thousand, eighty-nine".

Divisors: 1 71 1062975959 75471293089