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490194580 = 22524509729
BaseRepresentation
bin11101001101111…
…100011010010100
31021011101110112211
4131031330122110
52000442211310
6120350323204
715101404501
oct3515743224
91234343484
10490194580
1123177a497
121181b9504
137a730c85
14491624a8
152d07cc8a
hex1d37c694

490194580 has 12 divisors (see below), whose sum is σ = 1029408660. Its totient is φ = 196077824.

The previous prime is 490194557. The next prime is 490194583. The reversal of 490194580 is 85491094.

It can be written as a sum of positive squares in 2 ways, for example, as 272514064 + 217680516 = 16508^2 + 14754^2 .

It is a super-2 number, since 2×4901945802 = 480581452522752800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490194583) 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, 12254845 + ... + 12254884.

It is an arithmetic number, because the mean of its divisors is an integer number (85784055).

Almost surely, 2490194580 is an apocalyptic number.

It is an amenable number.

490194580 is an abundant number, since it is smaller than the sum of its proper divisors (539214080).

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

490194580 is a wasteful number, since it uses less digits than its factorization.

490194580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24509738 (or 24509736 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 490194580 is about 22140.3382991317. The cubic root of 490194580 is about 788.4778574111.

The spelling of 490194580 in words is "four hundred ninety million, one hundred ninety-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 24509729 49019458 98038916 122548645 245097290 490194580