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38378389487010 = 23523233558142773
BaseRepresentation
bin10001011100111101010100…
…10001011011110110100010
312000212221022221122201121020
420232132222101123312202
520012242420202041020
6213342442211110310
711040514161105426
oct1056365221336642
9160787287581536
1038378389487010
11112572023853a1
124379ba4ba2396
1318550b341cb41
14969749a76b86
1546849b2e2c40
hex22e7aa45bda2

38378389487010 has 128 divisors (see below), whose sum is σ = 96544890164736. Its totient is φ = 9745281976320.

The previous prime is 38378389486993. The next prime is 38378389487047. The reversal of 38378389487010 is 1078498387383.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 897235984 + ... + 897278756.

It is an arithmetic number, because the mean of its divisors is an integer number (754256954412).

Almost surely, 238378389487010 is an apocalyptic number.

38378389487010 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 38378389487010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48272445082368).

38378389487010 is an abundant number, since it is smaller than the sum of its proper divisors (58166500677726).

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

38378389487010 is a wasteful number, since it uses less digits than its factorization.

38378389487010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48620.

The product of its (nonzero) digits is 195084288, while the sum is 69.

The spelling of 38378389487010 in words is "thirty-eight trillion, three hundred seventy-eight billion, three hundred eighty-nine million, four hundred eighty-seven thousand, ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 233 345 466 690 699 1165 1398 2330 3495 5359 5581 6990 10718 11162 16077 16743 26795 27905 32154 33486 42773 53590 55810 80385 83715 85546 128319 128363 160770 167430 213865 256638 256726 385089 427730 641595 641815 770178 983779 1283190 1283630 1300373 1925445 1967558 2600746 2951337 3850890 3901119 4918895 5902674 6501865 7802238 9837790 9966109 13003730 14756685 19505595 19932218 29513370 29898327 29908579 39011190 49830545 59796654 59817158 89725737 99661090 149491635 149542895 179451474 229220507 238716113 298983270 299085790 448628685 458441014 477432226 687661521 716148339 897257370 1146102535 1193580565 1375323042 1432296678 2292205070 2387161130 3438307605 3580741695 5490470599 6876615210 7161483390 10980941198 16471411797 27452352995 32942823594 54904705990 55620854329 82357058985 111241708658 164714117970 166862562987 278104271645 333725125974 556208543290 834312814935 1279279649567 1668625629870 2558559299134 3837838948701 6396398247835 7675677897402 12792796495670 19189194743505 38378389487010