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20020101100 = 2252215392987
BaseRepresentation
bin10010101001010010…
…100111111111101100
31220200020100111202221
4102221102213333230
5312000121213400
613110324125124
71306055023456
oct225122477754
956606314687
1020020101100
1185439092aa
123a688367a4
131b708c508c
14d7cc392d6
157c28dbc1a
hex4a94a7fec

20020101100 has 36 divisors (see below), whose sum is σ = 43464264984. Its totient is φ = 8004234880.

The previous prime is 20020101097. The next prime is 20020101107. The reversal of 20020101100 is 110102002.

It is not an unprimeable number, because it can be changed into a prime (20020101107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168807 + ... + 261793.

It is an arithmetic number, because the mean of its divisors is an integer number (1207340694).

Almost surely, 220020101100 is an apocalyptic number.

20020101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020101100 is an abundant number, since it is smaller than the sum of its proper divisors (23444163884).

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

20020101100 is a wasteful number, since it uses less digits than its factorization.

20020101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95154 (or 95147 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20020101100 its reverse (110102002), we get a palindrome (20130203102).

The spelling of 20020101100 in words is "twenty billion, twenty million, one hundred one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2153 4306 8612 10765 21530 43060 53825 92987 107650 185974 215300 371948 464935 929870 1859740 2324675 4649350 9298700 200201011 400402022 800804044 1001005055 2002010110 4004020220 5005025275 10010050550 20020101100