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163136163 = 354378721
BaseRepresentation
bin10011011100101…
…00001010100011
3102100222011202010
421232110022203
5313230324123
624104324003
74020430431
oct1156241243
9370864663
10163136163
11840a4683
1246773603
1327a4b098
1417947d51
15e4c6993
hex9b942a3

163136163 has 4 divisors (see below), whose sum is σ = 217514888. Its totient is φ = 108757440.

The previous prime is 163136137. The next prime is 163136191. The reversal of 163136163 is 361631361.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 163136163 - 216 = 163070627 is a prime.

It is a super-2 number, since 2×1631361632 = 53226815356725138, which contains 22 as substring.

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 163136163.

It is not an unprimeable number, because it can be changed into a prime (163136123) 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 3 ways as a sum of consecutive naturals, for example, 27189358 + ... + 27189363.

It is an arithmetic number, because the mean of its divisors is an integer number (54378722).

Almost surely, 2163136163 is an apocalyptic number.

163136163 is a deficient number, since it is larger than the sum of its proper divisors (54378725).

163136163 is an equidigital number, since it uses as much as digits as its factorization.

163136163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54378724.

The product of its digits is 5832, while the sum is 30.

The square root of 163136163 is about 12772.4767762560. The cubic root of 163136163 is about 546.4076207147.

The spelling of 163136163 in words is "one hundred sixty-three million, one hundred thirty-six thousand, one hundred sixty-three".

Divisors: 1 3 54378721 163136163