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1205350210212 = 2231945911151519
BaseRepresentation
bin10001100010100100011…
…110001001101010100100
311021020012221001221122020
4101202210132021222210
5124222024123211322
62321421422103140
7153040462511361
oct21424436115244
94236187057566
101205350210212
11425205852225
1217573141aab0
1389882b74375
14424a6d0d468
152154976d05c
hex118a4789aa4

1205350210212 has 48 divisors (see below), whose sum is σ = 2961156710400. Its totient is φ = 380553668640.

The previous prime is 1205350210157. The next prime is 1205350210271. The reversal of 1205350210212 is 2120120535021.

It is a super-2 number, since 2×12053502102122 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470989 + ... + 1622507.

It is an arithmetic number, because the mean of its divisors is an integer number (61690764800).

Almost surely, 21205350210212 is an apocalyptic number.

1205350210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1205350210212 is an abundant number, since it is smaller than the sum of its proper divisors (1755806500188).

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

1205350210212 is a wasteful number, since it uses less digits than its factorization.

1205350210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156136 (or 1156134 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 1205350210212 its reverse (2120120535021), we get a palindrome (3325470745233).

The spelling of 1205350210212 in words is "one trillion, two hundred five billion, three hundred fifty million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 4591 9182 13773 18364 27546 55092 87229 174458 261687 348916 523374 1046748 1151519 2303038 3454557 4606076 6909114 13818228 21878861 43757722 65636583 87515444 131273166 262546332 5286623729 10573247458 15859871187 21146494916 31719742374 63439484748 100445850851 200891701702 301337552553 401783403404 602675105106 1205350210212