Search a number
-
+
8325132481 = 75710997533
BaseRepresentation
bin1111100000011011…
…10111000011000001
3210111012012112211001
413300031313003001
5114022213214411
63454032252001
7413206313161
oct76015670301
923435175731
108325132481
113592358286
1217440a1001
13a28a004c3
1458d9405a1
1533ad20dc1
hex1f03770c1

8325132481 has 4 divisors (see below), whose sum is σ = 8336130772. Its totient is φ = 8314134192.

The previous prime is 8325132449. The next prime is 8325132493. The reversal of 8325132481 is 1842315238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2456193600 + 5868938881 = 49560^2 + 76609^2 .

It is a cyclic number.

It is not a de Polignac number, because 8325132481 - 25 = 8325132449 is a prime.

It is a super-2 number, since 2×83251324812 (a number of 21 digits) contains 22 as substring.

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 8325132481.

It is not an unprimeable number, because it can be changed into a prime (8325132581) 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, 5498010 + ... + 5499523.

It is an arithmetic number, because the mean of its divisors is an integer number (2084032693).

Almost surely, 28325132481 is an apocalyptic number.

It is an amenable number.

8325132481 is a deficient number, since it is larger than the sum of its proper divisors (10998291).

8325132481 is a wasteful number, since it uses less digits than its factorization.

8325132481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998290.

The product of its digits is 46080, while the sum is 37.

The square root of 8325132481 is about 91242.1639429929. The cubic root of 8325132481 is about 2026.7353903715.

The spelling of 8325132481 in words is "eight billion, three hundred twenty-five million, one hundred thirty-two thousand, four hundred eighty-one".

Divisors: 1 757 10997533 8325132481