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163693142 = 2181452191
BaseRepresentation
bin10011100000111…
…00001001010110
3102102000110202222
421300130021112
5313401140032
624124302342
74025240324
oct1160341126
9372013688
10163693142
1184445098
12469a19b2
1327bb4762
1417a50d14
15e586a12
hex9c1c256

163693142 has 8 divisors (see below), whose sum is σ = 246896832. Its totient is φ = 81394200.

The previous prime is 163693141. The next prime is 163693163. The reversal of 163693142 is 241396361.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163693141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225734 + ... + 226457.

It is an arithmetic number, because the mean of its divisors is an integer number (30862104).

Almost surely, 2163693142 is an apocalyptic number.

163693142 is a deficient number, since it is larger than the sum of its proper divisors (83203690).

163693142 is a wasteful number, since it uses less digits than its factorization.

163693142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452374.

The product of its digits is 23328, while the sum is 35.

The square root of 163693142 is about 12794.2620732889. The cubic root of 163693142 is about 547.0287621055.

The spelling of 163693142 in words is "one hundred sixty-three million, six hundred ninety-three thousand, one hundred forty-two".

Divisors: 1 2 181 362 452191 904382 81846571 163693142