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490727720 = 23571752599
BaseRepresentation
bin11101001111111…
…110100100101000
31021012101112212202
4131033332210220
52001111241340
6120405555332
715106055030
oct3517764450
91235345782
10490727720
11232003aaa
12118415b48
137a889842
14492608c0
152d135c15
hex1d3fe928

490727720 has 32 divisors (see below), whose sum is σ = 1261872000. Its totient is φ = 168249408.

The previous prime is 490727719. The next prime is 490727749. The reversal of 490727720 is 27727094.

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, 876020 + ... + 876579.

It is an arithmetic number, because the mean of its divisors is an integer number (39433500).

Almost surely, 2490727720 is an apocalyptic number.

490727720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490727720 is an abundant number, since it is smaller than the sum of its proper divisors (771144280).

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

490727720 is a wasteful number, since it uses less digits than its factorization.

490727720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752617 (or 1752613 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 490727720 is about 22152.3750419678. The cubic root of 490727720 is about 788.7636056936.

The spelling of 490727720 in words is "four hundred ninety million, seven hundred twenty-seven thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 1752599 3505198 7010396 8762995 12268193 14020792 17525990 24536386 35051980 49072772 61340965 70103960 98145544 122681930 245363860 490727720