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38398079384 = 23717306713151
BaseRepresentation
bin100011110000101101…
…000011000110011000
310200010000202112112022
4203300231003012120
51112114402020014
625350112034012
72526353201210
oct436055030630
9120100675468
1038398079384
1115314795405
127537532908
13380c226542
141c03937240
15eeb058a8e
hex8f0b43198

38398079384 has 64 divisors (see below), whose sum is σ = 87156725760. Its totient is φ = 15482073600.

The previous prime is 38398079383. The next prime is 38398079389. The reversal of 38398079384 is 48397089383.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38398079383) 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, 2913209 + ... + 2926359.

It is an arithmetic number, because the mean of its divisors is an integer number (1361823840).

Almost surely, 238398079384 is an apocalyptic number.

38398079384 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

38398079384 is an abundant number, since it is smaller than the sum of its proper divisors (48758646376).

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

38398079384 is a wasteful number, since it uses less digits than its factorization.

38398079384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248 (or 16244 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

Subtracting 38398079384 from its reverse (48397089383), we obtain a palindrome (9999009999).

It can be divided in two parts, 383980 and 79384, that added together give a palindrome (463364).

The spelling of 38398079384 in words is "thirty-eight billion, three hundred ninety-eight million, seventy-nine thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 3067 6134 12268 13151 21469 24536 26302 42938 52139 52604 85876 92057 104278 105208 171752 184114 208556 223567 364973 368228 417112 447134 729946 736456 894268 1459892 1564969 1788536 2919784 3129938 6259876 12519752 40334117 80668234 161336468 282338819 322672936 564677638 685679989 1129355276 1371359978 2258710552 2742719956 4799759923 5485439912 9599519846 19199039692 38398079384