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491102 = 231892
BaseRepresentation
bin1110111111001011110
3220221122222
41313321132
5111203402
614305342
74113533
oct1677136
9827588
10491102
11305a77
121b8252
131426c1
14cad8a
159a7a2
hex77e5e

491102 has 12 divisors (see below), whose sum is σ = 769056. Its totient is φ = 234960.

The previous prime is 491083. The next prime is 491129. The reversal of 491102 is 201194.

It is a happy number.

It is a super-3 number, since 3×4911023 = 355333671336459624, which contains 333 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491102.

It is an unprimeable number.

491102 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5474 + ... + 5562.

It is an arithmetic number, because the mean of its divisors is an integer number (64088).

2491102 is an apocalyptic number.

491102 is a deficient number, since it is larger than the sum of its proper divisors (277954).

491102 is an equidigital number, since it uses as much as digits as its factorization.

491102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 491102 is about 700.7867007871. The cubic root of 491102 is about 78.8964085788.

Adding to 491102 its reverse (201194), we get a palindrome (692296).

The spelling of 491102 in words is "four hundred ninety-one thousand, one hundred two".

Divisors: 1 2 31 62 89 178 2759 5518 7921 15842 245551 491102