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2020011100 = 225220200111
BaseRepresentation
bin111100001100110…
…1110110001011100
312012210000012021221
41320121232301130
513114110323400
6532235503124
7101025545122
oct17031566134
95183005257
102020011100
11947275268
124845b7aa4
13262662853
141523c7912
15bc516c1a
hex7866ec5c

2020011100 has 18 divisors (see below), whose sum is σ = 4383424304. Its totient is φ = 808004400.

The previous prime is 2020011079. The next prime is 2020011121. The reversal of 2020011100 is 11100202.

It is an interprime number because it is at equal distance from previous prime (2020011079) and next prime (2020011121).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10099956 + ... + 10100155.

Almost surely, 22020011100 is an apocalyptic number.

2020011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020011100 is an abundant number, since it is smaller than the sum of its proper divisors (2363413204).

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

2020011100 is a wasteful number, since it uses less digits than its factorization.

2020011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200125 (or 20200118 counting only the distinct ones).

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

The square root of 2020011100 is about 44944.5335941981. The cubic root of 2020011100 is about 1264.1091803023.

Adding to 2020011100 its reverse (11100202), we get a palindrome (2031111302).

The spelling of 2020011100 in words is "two billion, twenty million, eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20200111 40400222 80800444 101000555 202001110 404002220 505002775 1010005550 2020011100