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20030111113100 = 22521118209191921
BaseRepresentation
bin1001000110111100111111…
…01010000101111110001100
32121220212012212211112112212
410203132133222011332030
510111133131421104400
6110333412255445552
74135061553166424
oct443363752057614
977825185745485
1020030111113100
1164227a45a2a80
1222b5b778268b8
13b23aa66b0a1a
144d366934b484
1524b06860c335
hex12379fa85f8c

20030111113100 has 36 divisors (see below), whose sum is σ = 47416735764888. Its totient is φ = 7283676768000.

The previous prime is 20030111113097. The next prime is 20030111113151. The reversal of 20030111113100 is 131111103002.

It is a happy number.

It is a super-2 number, since 2×200301111131002 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9104594861 + ... + 9104597060.

Almost surely, 220030111113100 is an apocalyptic number.

20030111113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030111113100 is an abundant number, since it is smaller than the sum of its proper divisors (27386624651788).

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

20030111113100 is a wasteful number, since it uses less digits than its factorization.

20030111113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18209191946 (or 18209191939 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 20030111113100 its reverse (131111103002), we get a palindrome (20161222216102).

The spelling of 20030111113100 in words is "twenty trillion, thirty billion, one hundred eleven million, one hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 18209191921 36418383842 72836767684 91045959605 182091919210 200301111131 364183838420 400602222262 455229798025 801204444524 910459596050 1001505555655 1820919192100 2003011111310 4006022222620 5007527778275 10015055556550 20030111113100