Search a number
-
+
480731 is a prime number
BaseRepresentation
bin1110101010111011011
3220102102212
41311113123
5110340411
614145335
74041356
oct1652733
9812385
10480731
112a91a9
121b224b
1313aa74
14c729d
159768b
hex755db

480731 has 2 divisors, whose sum is σ = 480732. Its totient is φ = 480730.

The previous prime is 480713. The next prime is 480737. The reversal of 480731 is 137084.

It is a happy number.

Together with previous prime (480713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-480731 is a prime.

It is a super-3 number, since 3×4807313 = 333294111211373673, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 480697 and 480706.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 480731.

It is not a weakly prime, because it can be changed into another prime (480737) 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 as a sum of consecutive naturals, namely, 240365 + 240366.

It is an arithmetic number, because the mean of its divisors is an integer number (240366).

2480731 is an apocalyptic number.

480731 is a deficient number, since it is larger than the sum of its proper divisors (1).

480731 is an equidigital number, since it uses as much as digits as its factorization.

480731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 480731 is about 693.3476761337. The cubic root of 480731 is about 78.3370794446.

The spelling of 480731 in words is "four hundred eighty thousand, seven hundred thirty-one".