Search a number
-
+
38028276 = 223211138389
BaseRepresentation
bin1001000100010…
…0001111110100
32122120000222200
42101010033310
534213401101
63435024500
7641143416
oct221041764
978500880
1038028276
111a514230
121089b130
137b56250
14509c9b6
153512986
hex24443f4

38028276 has 144 divisors (see below), whose sum is σ = 115577280. Its totient is φ = 10391040.

The previous prime is 38028241. The next prime is 38028299. The reversal of 38028276 is 67282083.

It is a happy number.

38028276 is a `hidden beast` number, since 380 + 2 + 8 + 276 = 666.

It is a super-2 number, since 2×380282762 = 2892299551064352, which contains 22 as substring.

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 38028276.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427240 + ... + 427328.

It is an arithmetic number, because the mean of its divisors is an integer number (802620).

Almost surely, 238028276 is an apocalyptic number.

38028276 is a gapful number since it is divisible by the number (36) 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 38028276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57788640).

38028276 is an abundant number, since it is smaller than the sum of its proper divisors (77549004).

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

38028276 is a wasteful number, since it uses less digits than its factorization.

38028276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 38028276 is about 6166.7070629308. The cubic root of 38028276 is about 336.2809087916.

The spelling of 38028276 in words is "thirty-eight million, twenty-eight thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 9 11 12 13 18 22 26 33 36 39 44 52 66 78 83 89 99 117 132 143 156 166 178 198 234 249 267 286 332 356 396 429 468 498 534 572 747 801 858 913 979 996 1068 1079 1157 1287 1494 1602 1716 1826 1958 2158 2314 2574 2739 2937 2988 3204 3237 3471 3652 3916 4316 4628 5148 5478 5874 6474 6942 7387 8217 8811 9711 10413 10956 11748 11869 12727 12948 13884 14774 16434 17622 19422 20826 22161 23738 25454 29548 32868 35244 35607 38181 38844 41652 44322 47476 50908 66483 71214 76362 81257 88644 96031 106821 114543 132966 142428 152724 162514 192062 213642 229086 243771 265932 288093 325028 384124 427284 458172 487542 576186 731313 864279 975084 1056341 1152372 1462626 1728558 2112682 2925252 3169023 3457116 4225364 6338046 9507069 12676092 19014138 38028276