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490118746 = 21330761403
BaseRepresentation
bin11101001101101…
…001111001011010
31021011020121112011
4131031221321122
52000432244441
6120344540134
715100640425
oct3515517132
91234217464
10490118746
11231728517
1211818164a
137a7055c0
14491429bc
152d065581
hex1d369e5a

490118746 has 16 divisors (see below), whose sum is σ = 794322144. Its totient is φ = 225468144.

The previous prime is 490118731. The next prime is 490118747. The reversal of 490118746 is 647811094.

It is a super-2 number, since 2×4901187462 = 480432770361225032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 490118699 and 490118708.

It is not an unprimeable number, because it can be changed into a prime (490118747) 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, 22720 + ... + 38683.

It is an arithmetic number, because the mean of its divisors is an integer number (49645134).

Almost surely, 2490118746 is an apocalyptic number.

490118746 is a deficient number, since it is larger than the sum of its proper divisors (304203398).

490118746 is a wasteful number, since it uses less digits than its factorization.

490118746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61725.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 490118746 is about 22138.6256574341. The cubic root of 490118746 is about 788.4371956577.

The spelling of 490118746 in words is "four hundred ninety million, one hundred eighteen thousand, seven hundred forty-six".

Divisors: 1 2 13 26 307 614 3991 7982 61403 122806 798239 1596478 18850721 37701442 245059373 490118746