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2112020300 = 22521311291439
BaseRepresentation
bin111110111100010…
…1101111101001100
312110012010202012002
41331320231331030
513311134122200
6545323531432
7103223606405
oct17570557514
95405122162
102112020300
119941a9125
124ab389b78
13278739170
141606d89ac
15c563dbd5
hex7de2df4c

2112020300 has 72 divisors (see below), whose sum is σ = 4943433600. Its totient is φ = 778590720.

The previous prime is 2112020299. The next prime is 2112020303. The reversal of 2112020300 is 30202112.

It is a happy number.

It is a super-2 number, since 2×21120203002 = 8921259495224180000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112020303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1466981 + ... + 1468419.

It is an arithmetic number, because the mean of its divisors is an integer number (68658800).

Almost surely, 22112020300 is an apocalyptic number.

2112020300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2471716800).

2112020300 is an abundant number, since it is smaller than the sum of its proper divisors (2831413300).

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

2112020300 is a wasteful number, since it uses less digits than its factorization.

2112020300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2112020300 is about 45956.7220327995. The cubic root of 2112020300 is about 1283.0178426510.

Adding to 2112020300 its reverse (30202112), we get a palindrome (2142222412).

The spelling of 2112020300 in words is "two billion, one hundred twelve million, twenty thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1129 1300 1439 2258 2878 4516 5645 5756 7195 11290 14390 14677 18707 22580 28225 28780 29354 35975 37414 56450 58708 71950 73385 74828 93535 112900 143900 146770 187070 293540 366925 374140 467675 733850 935350 1467700 1624631 1870700 3249262 6498524 8123155 16246310 21120203 32492620 40615775 42240406 81231550 84480812 105601015 162463100 211202030 422404060 528005075 1056010150 2112020300