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189488119 = 1079911787
BaseRepresentation
bin10110100101101…
…01101111110111
3111012112222211111
423102311233313
5342002104434
630445215451
74460423332
oct1322655767
9435488744
10189488119
1197a63257
1253561587
1330346762
141b247619
151197e964
hexb4b5bf7

189488119 has 8 divisors (see below), whose sum is σ = 191559168. Its totient is φ = 187422840.

The previous prime is 189488113. The next prime is 189488129. The reversal of 189488119 is 911884981.

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 189488119 - 211 = 189486071 is a prime.

It is a super-2 number, since 2×1894881192 = 71811494484316322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189488113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105144 + ... + 106930.

It is an arithmetic number, because the mean of its divisors is an integer number (23944896).

Almost surely, 2189488119 is an apocalyptic number.

189488119 is a deficient number, since it is larger than the sum of its proper divisors (2071049).

189488119 is a wasteful number, since it uses less digits than its factorization.

189488119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its digits is 165888, while the sum is 49.

The square root of 189488119 is about 13765.4683538193. The cubic root of 189488119 is about 574.3729714301.

The spelling of 189488119 in words is "one hundred eighty-nine million, four hundred eighty-eight thousand, one hundred nineteen".

Divisors: 1 107 991 1787 106037 191209 1770917 189488119