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2112300100 = 2252109193789
BaseRepresentation
bin111110111100111…
…0010010001000100
312110012122222000001
41331321302101010
513311222100400
6545333531044
7103226153221
oct17571622104
95405588001
102112300100
1199437a369
124ab4a3a84
13278806621
1416076c948
15c5696a6a
hex7de72444

2112300100 has 36 divisors (see below), whose sum is σ = 4625767300. Its totient is φ = 837164160.

The previous prime is 2112300083. The next prime is 2112300121. The reversal of 2112300100 is 10032112.

It can be written as a sum of positive squares in 6 ways, for example, as 184036356 + 1928263744 = 13566^2 + 43912^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 85995 + ... + 107794.

Almost surely, 22112300100 is an apocalyptic number.

2112300100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112300100 is an abundant number, since it is smaller than the sum of its proper divisors (2513467200).

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

2112300100 is a wasteful number, since it uses less digits than its factorization.

2112300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193912 (or 193905 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2112300100 is about 45959.7661003622. The cubic root of 2112300100 is about 1283.0744981261.

Adding to 2112300100 its reverse (10032112), we get a palindrome (2122332212).

The spelling of 2112300100 in words is "two billion, one hundred twelve million, three hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 109 218 436 545 1090 2180 2725 5450 10900 193789 387578 775156 968945 1937890 3875780 4844725 9689450 19378900 21123001 42246002 84492004 105615005 211230010 422460020 528075025 1056150050 2112300100