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18010104 = 2337235979
BaseRepresentation
bin100010010110…
…0111111111000
31020220000012220
41010230333320
514102310404
61442004040
7306040410
oct104547770
936800186
1018010104
11a191292
126046620
133967788
14256b640
1518ab4d9
hex112cff8

18010104 has 128 divisors (see below), whose sum is σ = 55296000. Its totient is φ = 4777344.

The previous prime is 18010103. The next prime is 18010117. The reversal of 18010104 is 40101081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18010103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227937 + ... + 228015.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 218010104 is an apocalyptic number.

18010104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18010104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27648000).

18010104 is an abundant number, since it is smaller than the sum of its proper divisors (37285896).

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

18010104 is a wasteful number, since it uses less digits than its factorization.

18010104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 18010104 is about 4243.8312878813. The cubic root of 18010104 is about 262.1231672318.

Adding to 18010104 its reverse (40101081), we get a palindrome (58111185).

The spelling of 18010104 in words is "eighteen million, ten thousand, one hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 21 23 24 28 42 46 56 59 69 79 84 92 118 138 158 161 168 177 184 236 237 276 316 322 354 413 472 474 483 552 553 632 644 708 826 948 966 1106 1239 1288 1357 1416 1652 1659 1817 1896 1932 2212 2478 2714 3304 3318 3634 3864 4071 4424 4661 4956 5428 5451 6636 7268 8142 9322 9499 9912 10856 10902 12719 13272 13983 14536 16284 18644 18998 21804 25438 27966 28497 32568 32627 37288 37996 38157 43608 50876 55932 56994 65254 75992 76314 97881 101752 107203 111864 113988 130508 152628 195762 214406 227976 261016 305256 321609 391524 428812 643218 750421 783048 857624 1286436 1500842 2251263 2572872 3001684 4502526 6003368 9005052 18010104