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38799012081930 = 23519591577348423
BaseRepresentation
bin10001101001001100110010…
…10101010011000100001010
312002101011000212021110111220
420310212121111103010022
520041140334043110210
6214304004201102510
711113064455140042
oct1064463125230412
9162334025243456
1038799012081930
11113a9628917571
124427612787a36
131885967412c69
14981c4caaa722
154743b8439c70
hex23499955310a

38799012081930 has 128 divisors (see below), whose sum is σ = 100314805708800. Its totient is φ = 9574347204864.

The previous prime is 38799012081877. The next prime is 38799012081959. The reversal of 38799012081930 is 3918021099783.

It is a super-2 number, since 2×387990120819302 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1605699 + ... + 8954121.

It is an arithmetic number, because the mean of its divisors is an integer number (783709419600).

Almost surely, 238799012081930 is an apocalyptic number.

38799012081930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38799012081930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50157402854400).

38799012081930 is an abundant number, since it is smaller than the sum of its proper divisors (61515793626870).

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

38799012081930 is a wasteful number, since it uses less digits than its factorization.

38799012081930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348668.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 38799012081930 in words is "thirty-eight trillion, seven hundred ninety-nine billion, twelve million, eighty-one thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 59 95 114 118 157 177 190 285 295 314 354 471 570 590 785 885 942 1121 1570 1770 2242 2355 2983 3363 4710 5605 5966 6726 8949 9263 11210 14915 16815 17898 18526 27789 29830 33630 44745 46315 55578 89490 92630 138945 175997 277890 351994 527991 879985 1055982 1759970 2639955 5279910 7348423 14696846 22045269 36742115 44090538 73484230 110226345 139620037 220452690 279240074 418860111 433556957 698100185 837720222 867113914 1153702411 1300670871 1396200370 2094300555 2167784785 2307404822 2601341742 3461107233 4188601110 4335569570 5768512055 6503354355 6922214466 8237582183 11537024110 13006708710 16475164366 17305536165 21920345809 24712746549 34611072330 41187910915 43840691618 49425493098 65761037427 68068442249 82375821830 109601729045 123563732745 131522074854 136136884498 204205326747 219203458090 247127465490 328805187135 340342211245 408410653494 657610374270 680684422490 1021026633735 1293300402731 2042053267470 2586600805462 3879901208193 6466502013655 7759802416386 12933004027310 19399506040965 38799012081930