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20000167 = 119771861
BaseRepresentation
bin100110001001…
…0110110100111
31101122010001221
41030102312213
520110001132
61552401211
7331666345
oct114226647
941563057
1020000167
1110320470
126846207
1341b3525
142928995
151b50e97
hex1312da7

20000167 has 8 divisors (see below), whose sum is σ = 21852432. Its totient is φ = 18153600.

The previous prime is 20000161. The next prime is 20000171. The reversal of 20000167 is 76100002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000167 - 23 = 20000159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000161) 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 7 ways as a sum of consecutive naturals, for example, 9817 + ... + 11677.

It is an arithmetic number, because the mean of its divisors is an integer number (2731554).

Almost surely, 220000167 is an apocalyptic number.

20000167 is a deficient number, since it is larger than the sum of its proper divisors (1852265).

20000167 is a wasteful number, since it uses less digits than its factorization.

20000167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 20000167 is about 4472.1546261282. The cubic root of 20000167 is about 271.4425171703.

Adding to 20000167 its reverse (76100002), we get a palindrome (96100169).

The spelling of 20000167 in words is "twenty million, one hundred sixty-seven", and thus it is an aban number.

Divisors: 1 11 977 1861 10747 20471 1818197 20000167