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38748384784 = 2417212765983
BaseRepresentation
bin100100000101100101…
…010110111000010000
310201000102220220012101
4210011211112320100
51113324041303114
625444544210144
72541135556564
oct440545267020
9121012826171
1038748384784
11154844a8aaa
127614909954
133866988745
141c382836a4
15101bba2d74
hex905956e10

38748384784 has 60 divisors (see below), whose sum is σ = 80380125184. Its totient is φ = 18090680832.

The previous prime is 38748384751. The next prime is 38748384797. The reversal of 38748384784 is 48748384783.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 554257 + ... + 620239.

Almost surely, 238748384784 is an apocalyptic number.

38748384784 is a gapful number since it is divisible by the number (34) 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 38748384784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40190062592).

38748384784 is an abundant number, since it is smaller than the sum of its proper divisors (41631740400).

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

38748384784 is a wasteful number, since it uses less digits than its factorization.

38748384784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66152 (or 66129 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 64.

Subtracting 38748384784 from its reverse (48748384783), we obtain a palindrome (9999999999).

The spelling of 38748384784 in words is "thirty-eight billion, seven hundred forty-eight million, three hundred eighty-four thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 17 34 68 127 136 254 272 289 508 578 1016 1156 2032 2159 2312 4318 4624 8636 17272 34544 36703 65983 73406 131966 146812 263932 293624 527864 587248 1055728 1121711 2243422 4486844 8379841 8973688 16759682 17947376 19069087 33519364 38138174 67038728 76276348 134077456 142457297 152552696 284914594 305105392 569829188 1139658376 2279316752 2421774049 4843548098 9687096196 19374192392 38748384784