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490052481 = 3163350827
BaseRepresentation
bin11101001101011…
…001101110000001
31021011010020121220
4131031121232001
52000423134411
6120343305253
715100243302
oct3515315601
91234106556
10490052481
11231692756
1211814b229
137a6b13a9
14491267a9
152d050b06
hex1d359b81

490052481 has 4 divisors (see below), whose sum is σ = 653403312. Its totient is φ = 326701652.

The previous prime is 490052471. The next prime is 490052509. The reversal of 490052481 is 184250094.

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.

It is a cyclic number.

It is not a de Polignac number, because 490052481 - 25 = 490052449 is a prime.

It is a super-2 number, since 2×4900524812 = 480302868268510722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490052441) 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, 81675411 + ... + 81675416.

It is an arithmetic number, because the mean of its divisors is an integer number (163350828).

Almost surely, 2490052481 is an apocalyptic number.

It is an amenable number.

490052481 is a deficient number, since it is larger than the sum of its proper divisors (163350831).

490052481 is a wasteful number, since it uses less digits than its factorization.

490052481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163350830.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 490052481 is about 22137.1290143957. The cubic root of 490052481 is about 788.4016613129.

The spelling of 490052481 in words is "four hundred ninety million, fifty-two thousand, four hundred eighty-one".

Divisors: 1 3 163350827 490052481