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205532412253 = 7151987119699
BaseRepresentation
bin1011111101101010101…
…1111011100101011101
3201122111220111100100221
42333122223323211131
511331412244143003
6234230440521341
720564166451540
oct2773253734535
9648456440327
10205532412253
117a190763433
1233a00480251
13164c6570aac
149d3ab74857
15552dee77bd
hex2fdaafb95d

205532412253 has 16 divisors (see below), whose sum is σ = 236485734400. Its totient is φ = 174977334000.

The previous prime is 205532412233. The next prime is 205532412301. The reversal of 205532412253 is 352214235502.

It is not a de Polignac number, because 205532412253 - 213 = 205532404061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205532412233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10423798 + ... + 10443496.

It is an arithmetic number, because the mean of its divisors is an integer number (14780358400).

Almost surely, 2205532412253 is an apocalyptic number.

It is an amenable number.

205532412253 is a deficient number, since it is larger than the sum of its proper divisors (30953322147).

205532412253 is a wasteful number, since it uses less digits than its factorization.

205532412253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29728.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 205532412253 its reverse (352214235502), we get a palindrome (557746647755).

The spelling of 205532412253 in words is "two hundred five billion, five hundred thirty-two million, four hundred twelve thousand, two hundred fifty-three".

Divisors: 1 7 151 1057 9871 19699 69097 137893 1490521 2974549 10433647 20821843 194448829 1361141803 29361773179 205532412253