Search a number
-
+
38228112 = 2434132269
BaseRepresentation
bin1001000111010…
…1000010010000
32122221012010000
42101311002100
534241244422
63443210000
7642635136
oct221650220
978835100
1038228112
111a64038a
1210976900
137bc61b0
145111756
153551cac
hex2475090

38228112 has 100 divisors (see below), whose sum is σ = 119206780. Its totient is φ = 11757312.

The previous prime is 38228111. The next prime is 38228117. The reversal of 38228112 is 21182283.

38228112 is a `hidden beast` number, since 382 + 281 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 34857216 = 1836^2 + 5904^2 .

It is a super-2 number, since 2×382281122 = 2922777094169088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (38228111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15714 + ... + 17982.

Almost surely, 238228112 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 38228112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59603390).

38228112 is an abundant number, since it is smaller than the sum of its proper divisors (80978668).

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

38228112 is a wasteful number, since it uses less digits than its factorization.

38228112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302 (or 2287 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 38228112 is about 6182.8886452855. Note that the first 3 decimals coincide. The cubic root of 38228112 is about 336.8689244203.

It can be divided in two parts, 38 and 228112, that added together give a triangular number (228150 = T675).

The spelling of 38228112 in words is "thirty-eight million, two hundred twenty-eight thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 78 81 104 108 117 144 156 162 208 216 234 312 324 351 432 468 624 648 702 936 1053 1296 1404 1872 2106 2269 2808 4212 4538 5616 6807 8424 9076 13614 16848 18152 20421 27228 29497 36304 40842 54456 58994 61263 81684 88491 108912 117988 122526 163368 176982 183789 235976 245052 265473 326736 353964 367578 471952 490104 530946 707928 735156 796419 980208 1061892 1415856 1470312 1592838 2123784 2389257 2940624 3185676 4247568 4778514 6371352 9557028 12742704 19114056 38228112