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490120122 = 2381686687
BaseRepresentation
bin11101001101101…
…010001110111010
31021011020200102010
4131031222032322
52000432320442
6120344550350
715100644432
oct3515521672
91234220363
10490120122
11231729558
121181823b6
137a70610b
14491432c2
152d065b9c
hex1d36a3ba

490120122 has 8 divisors (see below), whose sum is σ = 980240256. Its totient is φ = 163373372.

The previous prime is 490120091. The next prime is 490120123. The reversal of 490120122 is 221021094.

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

490120122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (490120123) 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 3 ways as a sum of consecutive naturals, for example, 40843338 + ... + 40843349.

It is an arithmetic number, because the mean of its divisors is an integer number (122530032).

Almost surely, 2490120122 is an apocalyptic number.

490120122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490120122 is a wasteful number, since it uses less digits than its factorization.

490120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81686692.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 490120122 is about 22138.6567343188. The cubic root of 490120122 is about 788.4379334983.

The spelling of 490120122 in words is "four hundred ninety million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 81686687 163373374 245060061 490120122