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16139214 = 23271359167
BaseRepresentation
bin111101100100…
…001111001110
31010100221211200
4331210033032
513112423324
61333530330
7254116050
oct75441716
933327750
1016139214
1191236a3
1254a39a6
133461040
1422018d0
15163bec9
hexf643ce

16139214 has 96 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 4159296.

The previous prime is 16139203. The next prime is 16139243. The reversal of 16139214 is 41293161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96559 + ... + 96725.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 216139214 is an apocalyptic number.

16139214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16139214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22014720).

16139214 is an abundant number, since it is smaller than the sum of its proper divisors (27890226).

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

16139214 is a wasteful number, since it uses less digits than its factorization.

16139214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 251 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 16139214 is about 4017.3640611724. The cubic root of 16139214 is about 252.7129282566.

The spelling of 16139214 in words is "sixteen million, one hundred thirty-nine thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 59 63 78 91 117 118 126 167 177 182 234 273 334 354 413 501 531 546 767 819 826 1002 1062 1169 1239 1503 1534 1638 2171 2301 2338 2478 3006 3507 3717 4342 4602 5369 6513 6903 7014 7434 9853 10521 10738 13026 13806 15197 16107 19539 19706 21042 29559 30394 32214 39078 45591 48321 59118 68971 88677 91182 96642 128089 136773 137942 177354 206913 256178 273546 384267 413826 620739 768534 896623 1152801 1241478 1793246 2305602 2689869 5379738 8069607 16139214