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163712116 = 2231242589
BaseRepresentation
bin10011100001000…
…00110001110100
3102102001102210201
421300200301310
5313402241431
624124530244
74025346541
oct1160406164
9372042721
10163712116
1184458377
12469b0984
1327bc0299
1417a57bc8
15e58c461
hex9c20c74

163712116 has 18 divisors (see below), whose sum is σ = 296043090. Its totient is φ = 79213680.

The previous prime is 163712089. The next prime is 163712117. The reversal of 163712116 is 611217361.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 52620516 = 10540^2 + 7254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163712117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17451 + ... + 25138.

Almost surely, 2163712116 is an apocalyptic number.

It is an amenable number.

163712116 is a deficient number, since it is larger than the sum of its proper divisors (132330974).

163712116 is a wasteful number, since it uses less digits than its factorization.

163712116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42655 (or 42622 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 163712116 is about 12795.0035560761. The cubic root of 163712116 is about 547.0498970221.

Adding to 163712116 its reverse (611217361), we get a palindrome (774929477).

The spelling of 163712116 in words is "one hundred sixty-three million, seven hundred twelve thousand, one hundred sixteen".

Divisors: 1 2 4 31 62 124 961 1922 3844 42589 85178 170356 1320259 2640518 5281036 40928029 81856058 163712116