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38221814016 = 283240732
BaseRepresentation
bin100011100110001100…
…101001100100000000
310122122202002022220100
4203212030221210000
51111234241022031
625320414042400
72522113026051
oct434614514400
9118582068810
1038221814016
1115234243651
1274a84a9400
1337b185c4c9
141bc8372728
15eda83bde6
hex8e6329900

38221814016 has 81 divisors (see below), whose sum is σ = 110229976129. Its totient is φ = 12737476608.

The previous prime is 38221813969. The next prime is 38221814027. The reversal of 38221814016 is 61041812283.

The square root of 38221814016 is 195504.

It is a perfect power (a square), and thus also a powerful number.

38221814016 is a `hidden beast` number, since 38 + 2 + 218 + 1 + 401 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4106246400 + 34115567616 = 64080^2 + 184704^2 .

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

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 9382156 + ... + 9386228.

Almost surely, 238221814016 is an apocalyptic number.

38221814016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

38221814016 is the 195504-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38221814016

38221814016 is an abundant number, since it is smaller than the sum of its proper divisors (72008162113).

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

38221814016 is an frugal number, since it uses more digits than its factorization.

38221814016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8168 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Multiplying 38221814016 by its sum of digits (36), we get a square (1375985304576 = 11730242).

38221814016 divided by its sum of digits (36) gives a square (1061717056 = 325842).

The spelling of 38221814016 in words is "thirty-eight billion, two hundred twenty-one million, eight hundred fourteen thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 4073 8146 12219 16292 24438 32584 36657 48876 65168 73314 97752 130336 146628 195504 260672 293256 391008 521344 586512 782016 1042688 1173024 1564032 2346048 3128064 4692096 9384192 16589329 33178658 49767987 66357316 99535974 132714632 149303961 199071948 265429264 298607922 398143896 530858528 597215844 796287792 1061717056 1194431688 1592575584 2123434112 2388863376 3185151168 4246868224 4777726752 6370302336 9555453504 12740604672 19110907008 38221814016