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10020021110205 = 354723715994431
BaseRepresentation
bin1001000111001111011111…
…0011001000010110111101
31022110220102111111000211120
42101303313303020112331
52303132000401011310
633151044550541153
72052631315103061
oct221636763102675
938426374430746
1010020021110205
113213515771497
121159b449677b9
13578b650149b2
14268d8614baa1
1512599c97db70
hex91cf7cc85bd

10020021110205 has 32 divisors (see below), whose sum is σ = 16380049195008. Its totient is φ = 5228102068800.

The previous prime is 10020021110201. The next prime is 10020021110213. The reversal of 10020021110205 is 50201112002001.

It is not a de Polignac number, because 10020021110205 - 22 = 10020021110201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020021110201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1325661 + ... + 4668770.

It is an arithmetic number, because the mean of its divisors is an integer number (511876537344).

Almost surely, 210020021110205 is an apocalyptic number.

10020021110205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10020021110205 is a deficient number, since it is larger than the sum of its proper divisors (6360028084803).

10020021110205 is a wasteful number, since it uses less digits than its factorization.

10020021110205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996857.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 10020021110205 its reverse (50201112002001), we get a palindrome (60221133112206).

The spelling of 10020021110205 in words is "ten trillion, twenty billion, twenty-one million, one hundred ten thousand, two hundred five".

Divisors: 1 3 5 15 47 141 235 705 2371 7113 11855 35565 111437 334311 557185 1671555 5994431 17983293 29972155 89916465 281738257 845214771 1408691285 4226073855 14212795901 42638387703 71063979505 213191938515 668001407347 2004004222041 3340007036735 10020021110205