Search a number
-
+
7132420577 = 57171247581
BaseRepresentation
bin1101010010010000…
…00001100111100001
3200102001220111200002
412221020001213201
5104101344424302
63135424305345
7341514401042
oct65110014741
920361814602
107132420577
11303007a167
121470772255
1389888b409
144b938a8c9
152bb274c02
hex1a92019e1

7132420577 has 4 divisors (see below), whose sum is σ = 7133673876. Its totient is φ = 7131167280.

The previous prime is 7132420541. The next prime is 7132420591. The reversal of 7132420577 is 7750242317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7750242317 = 55571394681.

It can be written as a sum of positive squares in 2 ways, for example, as 5998347601 + 1134072976 = 77449^2 + 33676^2 .

It is a cyclic number.

It is not a de Polignac number, because 7132420577 - 226 = 7065311713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7132420577.

It is not an unprimeable number, because it can be changed into a prime (7132425577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618074 + ... + 629507.

It is an arithmetic number, because the mean of its divisors is an integer number (1783418469).

Almost surely, 27132420577 is an apocalyptic number.

It is an amenable number.

7132420577 is a deficient number, since it is larger than the sum of its proper divisors (1253299).

7132420577 is a wasteful number, since it uses less digits than its factorization.

7132420577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253298.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 7132420577 is about 84453.6593464132. The cubic root of 7132420577 is about 1924.9183595668.

The spelling of 7132420577 in words is "seven billion, one hundred thirty-two million, four hundred twenty thousand, five hundred seventy-seven".

Divisors: 1 5717 1247581 7132420577