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196281 = 32113193
BaseRepresentation
bin101111111010111001
3100222020200
4233322321
522240111
64112413
71445151
oct577271
9328220
10196281
11124518
1295709
136b457
1451761
153d256
hex2feb9

196281 has 12 divisors (see below), whose sum is σ = 287508. Its totient is φ = 129024.

The previous prime is 196279. The next prime is 196291. The reversal of 196281 is 182691.

It can be written as a sum of positive squares in 2 ways, for example, as 19881 + 176400 = 141^2 + 420^2 .

It is not a de Polignac number, because 196281 - 21 = 196279 is a prime.

It is a super-2 number, since 2×1962812 = 77052461922, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 196281.

It is not an unprimeable number, because it can be changed into a prime (196201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 921 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (23959).

2196281 is an apocalyptic number.

It is an amenable number.

196281 is a deficient number, since it is larger than the sum of its proper divisors (91227).

196281 is a wasteful number, since it uses less digits than its factorization.

196281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 309 counting only the distinct ones).

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

The square root of 196281 is about 443.0361159093. The cubic root of 196281 is about 58.1156037534.

The spelling of 196281 in words is "one hundred ninety-six thousand, two hundred eighty-one".

Divisors: 1 3 9 113 193 339 579 1017 1737 21809 65427 196281