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163007071 = 523311677
BaseRepresentation
bin10011011011101…
…00101001011111
3102100201121122221
421231310221133
5313212211241
624101450211
74016352163
oct1155645137
9370647587
10163007071
1184016697
1246710967
1327a043b6
1417912ca3
15e49d5d1
hex9b74a5f

163007071 has 4 divisors (see below), whose sum is σ = 163319272. Its totient is φ = 162694872.

The previous prime is 163007063. The next prime is 163007129. The reversal of 163007071 is 170700361.

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

It is a cyclic number.

It is not a de Polignac number, because 163007071 - 23 = 163007063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163007051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155316 + ... + 156361.

It is an arithmetic number, because the mean of its divisors is an integer number (40829818).

Almost surely, 2163007071 is an apocalyptic number.

163007071 is a deficient number, since it is larger than the sum of its proper divisors (312201).

163007071 is an equidigital number, since it uses as much as digits as its factorization.

163007071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312200.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 163007071 is about 12767.4222535326. The cubic root of 163007071 is about 546.2634559363.

The spelling of 163007071 in words is "one hundred sixty-three million, seven thousand, seventy-one".

Divisors: 1 523 311677 163007071