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189614249 = 1121318089
BaseRepresentation
bin10110100110101…
…00100010101001
3111012210101211222
423103110202221
5342020123444
630452031425
74461460136
oct1323244251
9435711758
10189614249
1198039aa0
1253602575
133038bca6
141b27b58d
15119a6eee
hexb4d48a9

189614249 has 8 divisors (see below), whose sum is σ = 206974560. Its totient is φ = 172274400.

The previous prime is 189614239. The next prime is 189614263. The reversal of 189614249 is 942416981.

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

It is a cyclic number.

It is not a de Polignac number, because 189614249 - 28 = 189613993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189614239) by changing a digit.

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, 19397 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (25871820).

Almost surely, 2189614249 is an apocalyptic number.

It is an amenable number.

189614249 is a deficient number, since it is larger than the sum of its proper divisors (17360311).

189614249 is a wasteful number, since it uses less digits than its factorization.

189614249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231.

The product of its digits is 124416, while the sum is 44.

The square root of 189614249 is about 13770.0489832099. The cubic root of 189614249 is about 574.5003841584.

The spelling of 189614249 in words is "one hundred eighty-nine million, six hundred fourteen thousand, two hundred forty-nine".

Divisors: 1 11 2131 8089 23441 88979 17237659 189614249