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18374076 = 22327174289
BaseRepresentation
bin100011000010…
…1110110111100
31021120111111100
41012011312330
514200432301
61453453100
7312114510
oct106056674
937514440
1018374076
11a40a796
1261a1190
133a64346
142624140
15192e286
hex1185dbc

18374076 has 72 divisors (see below), whose sum is σ = 56216160. Its totient is φ = 4939776.

The previous prime is 18374063. The next prime is 18374101. The reversal of 18374076 is 67047381.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18374076.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2140 + ... + 6428.

It is an arithmetic number, because the mean of its divisors is an integer number (780780).

Almost surely, 218374076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18374076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28108080).

18374076 is an abundant number, since it is smaller than the sum of its proper divisors (37842084).

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

18374076 is a wasteful number, since it uses less digits than its factorization.

18374076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 18374076 is about 4286.4992709669. The cubic root of 18374076 is about 263.8771811627.

The spelling of 18374076 in words is "eighteen million, three hundred seventy-four thousand, seventy-six".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 63 68 84 102 119 126 153 204 238 252 306 357 476 612 714 1071 1428 2142 4284 4289 8578 12867 17156 25734 30023 38601 51468 60046 72913 77202 90069 120092 145826 154404 180138 218739 270207 291652 360276 437478 510391 540414 656217 874956 1020782 1080828 1312434 1531173 2041564 2624868 3062346 4593519 6124692 9187038 18374076