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490601 = 1273863
BaseRepresentation
bin1110111110001101001
3220220222102
41313301221
5111144401
614303145
74112216
oct1676151
9826872
10490601
11305661
121b7ab5
131423c7
14cab0d
159a56b
hex77c69

490601 has 4 divisors (see below), whose sum is σ = 494592. Its totient is φ = 486612.

The previous prime is 490591. The next prime is 490619. The reversal of 490601 is 106094.

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: 106094 = 253047.

It is a cyclic number.

It is not a de Polignac number, because 490601 - 26 = 490537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490631) 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, 1805 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (123648).

2490601 is an apocalyptic number.

It is an amenable number.

490601 is a deficient number, since it is larger than the sum of its proper divisors (3991).

490601 is a wasteful number, since it uses less digits than its factorization.

490601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 490601 is about 700.4291541619. The cubic root of 490601 is about 78.8695706038.

Adding to 490601 its reverse (106094), we get a palindrome (596695).

It can be divided in two parts, 4 and 90601, that multiplied together give a square (362404 = 6022).

The spelling of 490601 in words is "four hundred ninety thousand, six hundred one".

Divisors: 1 127 3863 490601