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490109242 = 27110931567
BaseRepresentation
bin11101001101100…
…111100100111010
31021011020010111011
4131031213210322
52000431443432
6120344424134
715100600630
oct3515474472
91234203434
10490109242
11231721367
1211817804a
137a70118c
144913d350
152d062847
hex1d36793a

490109242 has 16 divisors (see below), whose sum is σ = 840971520. Its totient is φ = 209850768.

The previous prime is 490109239. The next prime is 490109293. The reversal of 490109242 is 242901094.

It is a happy number.

It is an unprimeable number.

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, 258 + ... + 31309.

It is an arithmetic number, because the mean of its divisors is an integer number (52560720).

Almost surely, 2490109242 is an apocalyptic number.

490109242 is a deficient number, since it is larger than the sum of its proper divisors (350862278).

490109242 is a wasteful number, since it uses less digits than its factorization.

490109242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32685.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 490109242 is about 22138.4110089229. The cubic root of 490109242 is about 788.4320993719.

The spelling of 490109242 in words is "four hundred ninety million, one hundred nine thousand, two hundred forty-two".

Divisors: 1 2 7 14 1109 2218 7763 15526 31567 63134 220969 441938 35007803 70015606 245054621 490109242