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490531382 = 21179282239
BaseRepresentation
bin11101001111001…
…110101000110110
31021012000120112222
4131033032220312
52001034001012
6120401442342
715104306435
oct3517165066
91235016488
10490531382
1123198a540
121183403b2
137a81b373
144920d11c
152d0e7972
hex1d3cea36

490531382 has 16 divisors (see below), whose sum is σ = 812851200. Its totient is φ = 220145640.

The previous prime is 490531351. The next prime is 490531387. The reversal of 490531382 is 283135094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490531387) 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 7 ways as a sum of consecutive naturals, for example, 139382 + ... + 142857.

It is an arithmetic number, because the mean of its divisors is an integer number (50803200).

Almost surely, 2490531382 is an apocalyptic number.

490531382 is a deficient number, since it is larger than the sum of its proper divisors (322319818).

490531382 is a wasteful number, since it uses less digits than its factorization.

490531382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282331.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 490531382 is about 22147.9430647634. The cubic root of 490531382 is about 788.6583980461.

The spelling of 490531382 in words is "four hundred ninety million, five hundred thirty-one thousand, three hundred eighty-two".

Divisors: 1 2 11 22 79 158 869 1738 282239 564478 3104629 6209258 22296881 44593762 245265691 490531382