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494767980 = 22335719832
BaseRepresentation
bin11101011111011…
…000111101101100
31021110222211002000
4131133120331230
52003130033410
6121032332300
715155313150
oct3537307554
91243884060
10494767980
11234313563
12119844090
137b672825
14499d3060
152d682dc0
hex1d7d8f6c

494767980 has 288 divisors, whose sum is σ = 1874342400. Its totient is φ = 105846912.

The previous prime is 494767963. The next prime is 494767991. The reversal of 494767980 is 89767494.

It is a happy number.

494767980 is a `hidden beast` number, since 494 + 7 + 6 + 79 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5961019 + ... + 5961101.

Almost surely, 2494767980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494767980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937171200).

494767980 is an abundant number, since it is smaller than the sum of its proper divisors (1379574420).

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

494767980 is a wasteful number, since it uses less digits than its factorization.

494767980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 494767980 is about 22243.3805883908. The cubic root of 494767980 is about 790.9223750877.

It can be divided in two parts, 4947 and 67980, that added together give a palindrome (72927).

The spelling of 494767980 in words is "four hundred ninety-four million, seven hundred sixty-seven thousand, nine hundred eighty".