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215201206000 = 2453119781873
BaseRepresentation
bin1100100001101011111…
…1011100111011110000
3202120110202000221221001
43020122333130323300
512011213002043000
6242510112411344
721355613032564
oct3103277347360
9676422027831
10215201206000
11832a251a270
123585a546b54
13173a7755421
14a5b6d1d6a4
1558e7c8046a
hex321afdcef0

215201206000 has 80 divisors (see below), whose sum is σ = 567661711968. Its totient is φ = 78254976000.

The previous prime is 215201205983. The next prime is 215201206027. The reversal of 215201206000 is 602102512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4868937 + ... + 4912936.

Almost surely, 2215201206000 is an apocalyptic number.

215201206000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215201206000 is an abundant number, since it is smaller than the sum of its proper divisors (352460505968).

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

215201206000 is a wasteful number, since it uses less digits than its factorization.

215201206000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9781907 (or 9781891 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 215201206000 its reverse (602102512), we get a palindrome (215803308512).

It can be divided in two parts, 215201 and 206000, that added together give a square (421201 = 6492).

The spelling of 215201206000 in words is "two hundred fifteen billion, two hundred one million, two hundred six thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 80 88 100 110 125 176 200 220 250 275 400 440 500 550 880 1000 1100 1375 2000 2200 2750 4400 5500 11000 22000 9781873 19563746 39127492 48909365 78254984 97818730 107600603 156509968 195637460 215201206 244546825 391274920 430402412 489093650 538003015 782549840 860804824 978187300 1076006030 1222734125 1721609648 1956374600 2152012060 2445468250 2690015075 3912749200 4304024120 4890936500 5380030150 8608048240 9781873000 10760060300 13450075375 19563746000 21520120600 26900150750 43040241200 53800301500 107600603000 215201206000