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197063481 = 3598391327
BaseRepresentation
bin10111011111011…
…11001100111001
3111201210212021110
423233233030321
5400422012411
631315430533
74612004046
oct1357571471
9451725243
10197063481
11a126778a
1255bb5449
1331a99814
141c25a1cd
15124792a6
hexbbef339

197063481 has 16 divisors (see below), whose sum is σ = 267724800. Its totient is φ = 128897808.

The previous prime is 197063441. The next prime is 197063491. The reversal of 197063481 is 184360791.

It is not a de Polignac number, because 197063481 - 27 = 197063353 is a prime.

It is a super-2 number, since 2×1970634812 = 77668031087674722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197063401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147840 + ... + 149166.

It is an arithmetic number, because the mean of its divisors is an integer number (16732800).

Almost surely, 2197063481 is an apocalyptic number.

It is an amenable number.

197063481 is a deficient number, since it is larger than the sum of its proper divisors (70661319).

197063481 is a wasteful number, since it uses less digits than its factorization.

197063481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 197063481 is about 14037.9300824587. The cubic root of 197063481 is about 581.9272797982.

The spelling of 197063481 in words is "one hundred ninety-seven million, sixty-three thousand, four hundred eighty-one".

Divisors: 1 3 59 177 839 1327 2517 3981 49501 78293 148503 234879 1113353 3340059 65687827 197063481