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21142010311312 = 2411197609771871
BaseRepresentation
bin1001100111010100000100…
…00000111011001010010000
32202212011020001100012120111
410303222002000323022100
510232342314114430222
6112544301102251104
74311313503346102
oct463520200731220
982764201305514
1021142010311312
116811304716780
122455568586a94
13ba48b5789087
145313c8cb3572
15269e43a6b777
hex133a8203b290

21142010311312 has 40 divisors (see below), whose sum is σ = 44913357004032. Its totient is φ = 9561222921600.

The previous prime is 21142010311291. The next prime is 21142010311339. The reversal of 21142010311312 is 21311301024112.

It is a super-2 number, since 2×211420103113122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 7 ways as a sum of consecutive naturals, for example, 304851264 + ... + 304920607.

Almost surely, 221142010311312 is an apocalyptic number.

21142010311312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21142010311312 is an abundant number, since it is smaller than the sum of its proper divisors (23771346692720).

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

21142010311312 is a wasteful number, since it uses less digits than its factorization.

21142010311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609772087 (or 609772081 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21142010311312 its reverse (21311301024112), we get a palindrome (42453311335424).

The spelling of 21142010311312 in words is "twenty-one trillion, one hundred forty-two billion, ten million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 44 88 176 197 394 788 1576 2167 3152 4334 8668 17336 34672 609771871 1219543742 2439087484 4878174968 6707490581 9756349936 13414981162 26829962324 53659924648 107319849296 120125058587 240250117174 480500234348 961000468696 1321375644457 1922000937392 2642751288914 5285502577828 10571005155656 21142010311312