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212531225200 = 2452775904009
BaseRepresentation
bin1100010111101111011…
…0010010001001110000
3202022120122222212211021
43011323312102021300
511440230443201300
6241345133425224
721232502415160
oct3057366221160
9668518885737
10212531225200
1182152377168
123523433b214
131707054c628
14a4024a25a0
1557dd679d1a
hex317bd92270

212531225200 has 60 divisors (see below), whose sum is σ = 583550028880. Its totient is φ = 72867847680.

The previous prime is 212531225197. The next prime is 212531225227. The reversal of 212531225200 is 2522135212.

212531225200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37949205 + ... + 37954804.

Almost surely, 2212531225200 is an apocalyptic number.

212531225200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212531225200 is an abundant number, since it is smaller than the sum of its proper divisors (371018803680).

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

212531225200 is a wasteful number, since it uses less digits than its factorization.

212531225200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75904034 (or 75904023 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

It can be divided in two parts, 2125312 and 25200, that added together give a palindrome (2150512).

The spelling of 212531225200 in words is "two hundred twelve billion, five hundred thirty-one million, two hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 70 80 100 112 140 175 200 280 350 400 560 700 1400 2800 75904009 151808018 303616036 379520045 531328063 607232072 759040090 1062656126 1214464144 1518080180 1897600225 2125312252 2656640315 3036160360 3795200450 4250624504 5313280630 6072320720 7590400900 8501249008 10626561260 13283201575 15180801800 21253122520 26566403150 30361603600 42506245040 53132806300 106265612600 212531225200