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20120200212112 = 24711131256256257
BaseRepresentation
bin1001001001100100110010…
…11000101110111010010000
32122020110202100100221112121
410210302121120232322100
510114122132223241422
6110443031541504024
74144431213664030
oct444623130567220
978213670327477
1020120200212112
116457a2453a510
12230b51a412014
13b2c432acaac0
144d7b73ddd8c0
1524d58c6d88c7
hex124c9962ee90

20120200212112 has 80 divisors (see below), whose sum is σ = 52340660733312. Its totient is φ = 7236036034560.

The previous prime is 20120200212107. The next prime is 20120200212131. The reversal of 20120200212112 is 21121200202102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 628112113 + ... + 628144144.

Almost surely, 220120200212112 is an apocalyptic number.

20120200212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120200212112 is an abundant number, since it is smaller than the sum of its proper divisors (32220460521200).

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

20120200212112 is a wasteful number, since it uses less digits than its factorization.

20120200212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256256296 (or 1256256290 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120200212112 its reverse (21121200202102), we get a palindrome (41241400414214).

The spelling of 20120200212112 in words is "twenty trillion, one hundred twenty billion, two hundred million, two hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 7 8 11 13 14 16 22 26 28 44 52 56 77 88 91 104 112 143 154 176 182 208 286 308 364 572 616 728 1001 1144 1232 1456 2002 2288 4004 8008 16016 1256256257 2512512514 5025025028 8793793799 10050050056 13818818827 16331331341 17587587598 20100100112 27637637654 32662662682 35175175196 55275275308 65325325364 70350350392 96731731789 110550550616 114319319387 130650650728 140700700784 179644644751 193463463578 221101101232 228638638774 261301301456 359289289502 386926927156 457277277548 718578579004 773853854312 914554555096 1257512513257 1437157158008 1547707708624 1829109110192 2515025026514 2874314316016 5030050053028 10060100106056 20120200212112