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38286216 = 2333192491
BaseRepresentation
bin1001001000001…
…1001110001000
32200001010211000
42102003032020
534300124331
63444335000
7643266423
oct222031610
980033730
1038286216
111a680001
12109a4460
137c16787
1451289ba
1535640e6
hex2483388

38286216 has 96 divisors (see below), whose sum is σ = 112471200. Its totient is φ = 12065760.

The previous prime is 38286187. The next prime is 38286217. The reversal of 38286216 is 61268283.

38286216 is a `hidden beast` number, since 3 + 8 + 28 + 621 + 6 = 666.

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

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 (38286217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77731 + ... + 78221.

It is an arithmetic number, because the mean of its divisors is an integer number (1171575).

Almost surely, 238286216 is an apocalyptic number.

38286216 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 38286216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56235600).

38286216 is an abundant number, since it is smaller than the sum of its proper divisors (74184984).

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

38286216 is a wasteful number, since it uses less digits than its factorization.

38286216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 515 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 38286216 is about 6187.5856357710. The cubic root of 38286216 is about 337.0395102587.

The spelling of 38286216 in words is "thirty-eight million, two hundred eighty-six thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 36 38 54 57 72 76 108 114 152 171 216 228 342 361 456 491 513 684 722 982 1026 1083 1368 1444 1473 1964 2052 2166 2888 2946 3249 3928 4104 4332 4419 5892 6498 8664 8838 9329 9747 11784 12996 13257 17676 18658 19494 25992 26514 27987 35352 37316 38988 53028 55974 74632 77976 83961 106056 111948 167922 177251 223896 251883 335844 354502 503766 531753 671688 709004 1007532 1063506 1418008 1595259 2015064 2127012 3190518 4254024 4785777 6381036 9571554 12762072 19143108 38286216