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163134223 = 731773517
BaseRepresentation
bin10011011100100…
…11101100001111
3102100222002002021
421232103230033
5313230243343
624104311011
74020421660
oct1156235417
9370862067
10163134223
11840a317a
1246772467
1327a4a235
1417947367
15e4c60ed
hex9b93b0f

163134223 has 8 divisors (see below), whose sum is σ = 187029792. Its totient is φ = 139386336.

The previous prime is 163134199. The next prime is 163134229. The reversal of 163134223 is 322431361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-163134223 is a prime.

It is a super-2 number, since 2×1631342232 = 53225549427627458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163134229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34540 + ... + 38977.

It is an arithmetic number, because the mean of its divisors is an integer number (23378724).

Almost surely, 2163134223 is an apocalyptic number.

163134223 is a deficient number, since it is larger than the sum of its proper divisors (23895569).

163134223 is an equidigital number, since it uses as much as digits as its factorization.

163134223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73841.

The product of its digits is 2592, while the sum is 25.

The square root of 163134223 is about 12772.4008314804. The cubic root of 163134223 is about 546.4054547633.

Adding to 163134223 its reverse (322431361), we get a palindrome (485565584).

The spelling of 163134223 in words is "one hundred sixty-three million, one hundred thirty-four thousand, two hundred twenty-three".

Divisors: 1 7 317 2219 73517 514619 23304889 163134223