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163689314 = 21131494861
BaseRepresentation
bin10011100000110…
…11001101100010
3102102000021112012
421300123031202
5313401024224
624124232522
74025223215
oct1160331542
9372007465
10163689314
1184442228
124699b742
1327bb2aa9
1417a4d77c
15e58580e
hex9c1b362

163689314 has 16 divisors (see below), whose sum is σ = 249420600. Its totient is φ = 80559360.

The previous prime is 163689307. The next prime is 163689371. The reversal of 163689314 is 413986361.

It can be written as a sum of positive squares in 4 ways, for example, as 97673689 + 66015625 = 9883^2 + 8125^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31244 + ... + 36104.

Almost surely, 2163689314 is an apocalyptic number.

163689314 is a deficient number, since it is larger than the sum of its proper divisors (85731286).

163689314 is a wasteful number, since it uses less digits than its factorization.

163689314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125.

The product of its digits is 93312, while the sum is 41.

The square root of 163689314 is about 12794.1124741031. The cubic root of 163689314 is about 547.0244979431.

The spelling of 163689314 in words is "one hundred sixty-three million, six hundred eighty-nine thousand, three hundred fourteen".

Divisors: 1 2 113 149 226 298 4861 9722 16837 33674 549293 724289 1098586 1448578 81844657 163689314