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215243032050 = 23352413888763
BaseRepresentation
bin1100100001110101111…
…1000000010111110010
3202120120122201221111000
43020131133000113302
512011304204011200
6242514205102430
721356631404454
oct3103537002762
9676518657430
10215243032050
1183314097852
1235870557a16
13173b330b177
14a5bc6ca2d4
1558eb793300
hex321d7c05f2

215243032050 has 96 divisors (see below), whose sum is σ = 607580487360. Its totient is φ = 55998172800.

The previous prime is 215243032019. The next prime is 215243032079. The reversal of 215243032050 is 50230342512.

It is a happy number.

215243032050 is a `hidden beast` number, since 2 + 152 + 4 + 303 + 205 + 0 = 666.

215243032050 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 (27).

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 47 ways as a sum of consecutive naturals, for example, 1889032 + ... + 1999731.

It is an arithmetic number, because the mean of its divisors is an integer number (6328963410).

Almost surely, 2215243032050 is an apocalyptic number.

215243032050 is an abundant number, since it is smaller than the sum of its proper divisors (392337455310).

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

215243032050 is a wasteful number, since it uses less digits than its factorization.

215243032050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888825 (or 3888814 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 215243032050 its reverse (50230342512), we get a palindrome (265473374562).

The spelling of 215243032050 in words is "two hundred fifteen billion, two hundred forty-three million, thirty-two thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 41 45 50 54 75 82 90 123 135 150 205 225 246 270 369 410 450 615 675 738 1025 1107 1230 1350 1845 2050 2214 3075 3690 5535 6150 9225 11070 18450 27675 55350 3888763 7777526 11666289 19443815 23332578 34998867 38887630 58331445 69997734 97219075 104996601 116662890 159439283 174994335 194438150 209993202 291657225 318878566 349988670 478317849 524983005 583314450 797196415 874971675 956635698 1049966010 1434953547 1594392830 1749943350 2391589245 2624915025 2869907094 3985982075 4304860641 4783178490 5249830050 7174767735 7971964150 8609721282 11957946225 14349535470 21524303205 23915892450 35873838675 43048606410 71747677350 107621516025 215243032050