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982161 = 32611789
BaseRepresentation
bin11101111110010010001
31211220021100
43233302101
5222412121
633015013
711230305
oct3576221
91756240
10982161
11610a04
123b4469
1328507b
141b7d05
15146026
hexefc91

982161 has 12 divisors (see below), whose sum is σ = 1442740. Its totient is φ = 643680.

The previous prime is 982151. The next prime is 982171. The reversal of 982161 is 161289.

It is an interprime number because it is at equal distance from previous prime (982151) and next prime (982171).

It can be written as a sum of positive squares in 2 ways, for example, as 463761 + 518400 = 681^2 + 720^2 .

It is not a de Polignac number, because 982161 - 26 = 982097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 982161.

It is not an unprimeable number, because it can be changed into a prime (982151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346 + ... + 1443.

2982161 is an apocalyptic number.

It is an amenable number.

982161 is a deficient number, since it is larger than the sum of its proper divisors (460579).

982161 is a wasteful number, since it uses less digits than its factorization.

982161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 1853 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 982161 is about 991.0403624475. The cubic root of 982161 is about 99.4017953138.

The spelling of 982161 in words is "nine hundred eighty-two thousand, one hundred sixty-one".

Divisors: 1 3 9 61 183 549 1789 5367 16101 109129 327387 982161