Search a number
-
+
38238144 = 2637231237
BaseRepresentation
bin1001000111011…
…1011111000000
32122221200212120
42101313133000
534242110034
63443324240
7643006320
oct221673700
978850776
1038238144
111a64797a
1210980680
137bca929
145115280
153554c49
hex24777c0

38238144 has 112 divisors (see below), whose sum is σ = 120749568. Its totient is φ = 10441728.

The previous prime is 38238143. The next prime is 38238163. The reversal of 38238144 is 44183283.

38238144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38238143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30294 + ... + 31530.

Almost surely, 238238144 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 38238144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60374784).

38238144 is an abundant number, since it is smaller than the sum of its proper divisors (82511424).

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

38238144 is a wasteful number, since it uses less digits than its factorization.

38238144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1272 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 38238144 is about 6183.6998633504. The cubic root of 38238144 is about 336.8983894160.

The spelling of 38238144 in words is "thirty-eight million, two hundred thirty-eight thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 32 42 46 48 56 64 69 84 92 96 112 138 161 168 184 192 224 276 322 336 368 448 483 552 644 672 736 966 1104 1237 1288 1344 1472 1932 2208 2474 2576 3711 3864 4416 4948 5152 7422 7728 8659 9896 10304 14844 15456 17318 19792 25977 28451 29688 30912 34636 39584 51954 56902 59376 69272 79168 85353 103908 113804 118752 138544 170706 199157 207816 227608 237504 277088 341412 398314 415632 455216 554176 597471 682824 796628 831264 910432 1194942 1365648 1593256 1662528 1820864 2389884 2731296 3186512 4779768 5462592 6373024 9559536 12746048 19119072 38238144