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189085182 = 231113317109
BaseRepresentation
bin10110100010100…
…11010111111110
3111011210112002220
423101103113332
5341401211212
630432430210
74454124516
oct1321232776
9434715086
10189085182
1197808550
12533a8366
1330235230
141b180846
151190038c
hexb4535fe

189085182 has 64 divisors (see below), whose sum is σ = 458680320. Its totient is φ = 51177600.

The previous prime is 189085159. The next prime is 189085187. The reversal of 189085182 is 281580981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189085187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23044 + ... + 30152.

It is an arithmetic number, because the mean of its divisors is an integer number (7166880).

Almost surely, 2189085182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189085182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229340160).

189085182 is an abundant number, since it is smaller than the sum of its proper divisors (269595138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189085182 is a wasteful number, since it uses less digits than its factorization.

189085182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 189085182 is about 13750.8247752635. The cubic root of 189085182 is about 573.9655573873.

It can be divided in two parts, 18908 and 5182, that added together give a triangular number (24090 = T219).

The spelling of 189085182 in words is "one hundred eighty-nine million, eighty-five thousand, one hundred eighty-two".

Divisors: 1 2 3 6 11 13 22 26 31 33 39 62 66 78 93 143 186 286 341 403 429 682 806 858 1023 1209 2046 2418 4433 7109 8866 13299 14218 21327 26598 42654 78199 92417 156398 184834 220379 234597 277251 440758 469194 554502 661137 1016587 1322274 2033174 2424169 2864927 3049761 4848338 5729854 6099522 7272507 8594781 14545014 17189562 31514197 63028394 94542591 189085182