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38201128 = 2375361211
BaseRepresentation
bin1001000110111…
…0011100101000
32122212211002121
42101232130220
534234414003
63442441024
7642463360
oct221563450
978784077
1038201128
111a622089
1210963174
137bb6b24
1451059a0
153548cbd
hex246e728

38201128 has 64 divisors (see below), whose sum is σ = 85173120. Its totient is φ = 15724800.

The previous prime is 38201123. The next prime is 38201171. The reversal of 38201128 is 82110283.

It is not an unprimeable number, because it can be changed into a prime (38201123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180943 + ... + 181153.

It is an arithmetic number, because the mean of its divisors is an integer number (1330830).

Almost surely, 238201128 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 38201128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42586560).

38201128 is an abundant number, since it is smaller than the sum of its proper divisors (46971992).

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

38201128 is a wasteful number, since it uses less digits than its factorization.

38201128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 38201128 is about 6180.7061085284. The cubic root of 38201128 is about 336.7896441017.

The spelling of 38201128 in words is "thirty-eight million, two hundred one thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 53 56 61 106 122 211 212 244 371 422 424 427 488 742 844 854 1477 1484 1688 1708 2954 2968 3233 3416 5908 6466 11183 11816 12871 12932 22366 22631 25742 25864 44732 45262 51484 78281 89464 90097 90524 102968 156562 180194 181048 313124 360388 626248 682163 720776 1364326 2728652 4775141 5457304 9550282 19100564 38201128