[go: up one dir, main page]

Search a number
-
+
7461725081 = 7583984007
BaseRepresentation
bin1101111001100000…
…01110001110011001
3201021000112220112012
412330300032032121
5110240200200311
63232230355305
7352623421346
oct67460161631
921230486465
107461725081
113189a49548
121542abbb35
1391bb79755
1450adcb7cd
152da12178b
hex1bcc0e399

7461725081 has 4 divisors (see below), whose sum is σ = 7462716672. Its totient is φ = 7460733492.

The previous prime is 7461725071. The next prime is 7461725083. The reversal of 7461725081 is 1805271647.

7461725081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 1805271647 = 7572384771.

It is a cyclic number.

It is not a de Polignac number, because 7461725081 - 210 = 7461724057 is a prime.

It is a super-2 number, since 2×74617250812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7461725083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484421 + ... + 499586.

It is an arithmetic number, because the mean of its divisors is an integer number (1865679168).

Almost surely, 27461725081 is an apocalyptic number.

It is an amenable number.

7461725081 is a deficient number, since it is larger than the sum of its proper divisors (991591).

7461725081 is an equidigital number, since it uses as much as digits as its factorization.

7461725081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991590.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 7461725081 is about 86381.2773753665. The cubic root of 7461725081 is about 1954.0983347385.

The spelling of 7461725081 in words is "seven billion, four hundred sixty-one million, seven hundred twenty-five thousand, eighty-one".

Divisors: 1 7583 984007 7461725081