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2001010210100 = 22521113113886261
BaseRepresentation
bin11101000111100101100…
…000001011010100110100
321002021221211201211200222
4131013211200023110310
5230241032103210400
64131130145153512
7264365620102016
oct35074540132464
97067854654628
102001010210100
11701695108670
1228398632b898
13116904937925
146cbc6ad81b6
15370b6a29185
hex1d1e580b534

2001010210100 has 72 divisors (see below), whose sum is σ = 4773097064736. Its totient is φ = 722085520000.

The previous prime is 2001010210061. The next prime is 2001010210123. The reversal of 2001010210100 is 10120101002.

It is a super-2 number, since 2×20010102101002 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 6799031 + ... + 7087230.

It is an arithmetic number, because the mean of its divisors is an integer number (66293014788).

Almost surely, 22001010210100 is an apocalyptic number.

2001010210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001010210100 is an abundant number, since it is smaller than the sum of its proper divisors (2772086854636).

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

2001010210100 is a wasteful number, since it uses less digits than its factorization.

2001010210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13886417 (or 13886410 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001010210100 its reverse (10120101002), we get a palindrome (2011130311102).

The spelling of 2001010210100 in words is "two trillion, one billion, ten million, two hundred ten thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 131 220 262 275 524 550 655 1100 1310 1441 2620 2882 3275 5764 6550 7205 13100 14410 28820 36025 72050 144100 13886261 27772522 55545044 69431305 138862610 152748871 277725220 305497742 347156525 610995484 694313050 763744355 1388626100 1527488710 1819100191 3054977420 3638200382 3818721775 7276400764 7637443550 9095500955 15274887100 18191001910 20010102101 36382003820 40020204202 45477504775 80040408404 90955009550 100050510505 181910019100 200101021010 400202042020 500252552525 1000505105050 2001010210100