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20000112101020 = 2254124390380611
BaseRepresentation
bin1001000110000101000111…
…00100111100011010011100
32121210222210012101211100101
410203002203210330122130
510110140212144213040
6110311531420510444
74132650264614002
oct443024344743234
977728705354311
1020000112101020
116410aaa974207
1222b01a50ab424
13b210055a34bc
144d20210bca72
1524a3aeb2b09a
hex1230a393c69c

20000112101020 has 24 divisors (see below), whose sum is σ = 43024631399568. Its totient is φ = 7804921795200.

The previous prime is 20000112100963. The next prime is 20000112101113. The reversal of 20000112101020 is 2010121100002.

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 = 20000112100988 and 20000112101006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12195189486 + ... + 12195191125.

It is an arithmetic number, because the mean of its divisors is an integer number (1792692974982).

Almost surely, 220000112101020 is an apocalyptic number.

20000112101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000112101020 is an abundant number, since it is smaller than the sum of its proper divisors (23024519298548).

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

20000112101020 is a wasteful number, since it uses less digits than its factorization.

20000112101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24390380661 (or 24390380659 counting only the distinct ones).

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

Adding to 20000112101020 its reverse (2010121100002), we get a palindrome (22010233201022).

The spelling of 20000112101020 in words is "twenty trillion, one hundred twelve million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 24390380611 48780761222 97561522444 121951903055 243903806110 487807612220 1000005605051 2000011210102 4000022420204 5000028025255 10000056050510 20000112101020