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101200010210020 = 225176129711642363
BaseRepresentation
bin10111000000101001110110…
…101010001110101011100100
3111021022121220201020100210001
4113000221312222032223210
5101231030110103210040
6555122350510111044
730213313410501151
oct2700516652165344
9437277821210701
10101200010210020
112a2777575371a7
12b4252a67ab484
134461173896c87
141adc16c837228
15ba76a032559a
hex5c0a76a8eae4

101200010210020 has 96 divisors (see below), whose sum is σ = 228787191432576. Its totient is φ = 37461620275200.

The previous prime is 101200010210011. The next prime is 101200010210099. The reversal of 101200010210020 is 20012010002101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 101200010209979 and 101200010210006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60797359 + ... + 62439721.

It is an arithmetic number, because the mean of its divisors is an integer number (2383199910756).

Almost surely, 2101200010210020 is an apocalyptic number.

101200010210020 is a gapful number since it is divisible by the number (10) 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 101200010210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114393595716288).

101200010210020 is an abundant number, since it is smaller than the sum of its proper divisors (127587181222556).

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

101200010210020 is a wasteful number, since it uses less digits than its factorization.

101200010210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645421 (or 1645419 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101200010210020 its reverse (20012010002101), we get a palindrome (121212020212121).

The spelling of 101200010210020 in words is "one hundred one trillion, two hundred billion, ten million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 61 68 85 122 170 244 305 340 610 1037 1220 2074 2971 4148 5185 5942 10370 11884 14855 20740 29710 50507 59420 101014 181231 202028 252535 362462 505070 724924 906155 1010140 1642363 1812310 3080927 3284726 3624620 6161854 6569452 8211815 12323708 15404635 16423630 27920171 30809270 32847260 55840342 61618540 100184143 111680684 139600855 200368286 279201710 400736572 500920715 558403420 1001841430 1703130431 2003682860 3406260862 4879460473 6812521724 8515652155 9758920946 17031304310 19517841892 24397302365 34062608620 48794604730 82950828041 97589209460 165901656082 297647088853 331803312164 414754140205 595294177706 829508280410 1190588355412 1488235444265 1659016560820 2976470888530 5060000510501 5952941777060 10120001021002 20240002042004 25300002552505 50600005105010 101200010210020