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20000000212112 = 242961463701291
BaseRepresentation
bin1001000110000100111001…
…11010000111110010010000
32121210222111101212021121202
410203002130322013302100
510110140000023241422
6110311512342410332
74132644435564164
oct443023472076220
977728441767552
1020000000212112
116410a527a2438
1222b01737309a8
13b20cb835944b
144d20102b4ca4
1524a3a4dc8b92
hex12309ce87c90

20000000212112 has 40 divisors (see below), whose sum is σ = 40086916683840. Its totient is φ = 9655001659520.

The previous prime is 20000000212081. The next prime is 20000000212133. The reversal of 20000000212112 is 21121200000002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20000000212093 and 20000000212102.

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 7 ways as a sum of consecutive naturals, for example, 28168187 + ... + 28869477.

It is an arithmetic number, because the mean of its divisors is an integer number (1002172917096).

Almost surely, 220000000212112 is an apocalyptic number.

It is an amenable number.

20000000212112 is an abundant number, since it is smaller than the sum of its proper divisors (20086916471728).

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

20000000212112 is a wasteful number, since it uses less digits than its factorization.

20000000212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762791 (or 762785 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000000212112 its reverse (21121200000002), we get a palindrome (41121200212114).

The spelling of 20000000212112 in words is "twenty trillion, two hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 8 16 29 58 116 232 464 61463 122926 245852 491704 701291 983408 1402582 1782427 2805164 3564854 5610328 7129708 11220656 14259416 20337439 28518832 40674878 81349756 162699512 325399024 43103448733 86206897466 172413794932 344827589864 689655179728 1250000013257 2500000026514 5000000053028 10000000106056 20000000212112