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490018763 = 13346110891
BaseRepresentation
bin11101001101010…
…001011111001011
31021011001112101002
4131031101133023
52000421100023
6120342445215
715100043063
oct3515213713
91234045332
10490018763
1123166a393
1211813380b
137a69bc40
14491183a3
152d045b28
hex1d3517cb

490018763 has 8 divisors (see below), whose sum is σ = 527913456. Its totient is φ = 452152800.

The previous prime is 490018729. The next prime is 490018769. The reversal of 490018763 is 367810094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 490018763 - 26 = 490018699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490018769) 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 7 ways as a sum of consecutive naturals, for example, 39548 + ... + 50438.

It is an arithmetic number, because the mean of its divisors is an integer number (65989182).

Almost surely, 2490018763 is an apocalyptic number.

490018763 is a deficient number, since it is larger than the sum of its proper divisors (37894693).

490018763 is a wasteful number, since it uses less digits than its factorization.

490018763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14365.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 490018763 is about 22136.3674300911. The cubic root of 490018763 is about 788.3835789387.

The spelling of 490018763 in words is "four hundred ninety million, eighteen thousand, seven hundred sixty-three".

Divisors: 1 13 3461 10891 44993 141583 37693751 490018763