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20378473743168 = 263311793098231
BaseRepresentation
bin1001010001000101110111…
…01100000100001101000000
32200011011101212120201122000
410220202323230010031000
510132340103234240133
6111201424103544000
74202203401532422
oct450427354041500
980134355521560
1020378473743168
11654750a187032
12235159975b000
13b4a8b2c90ba8
1450647555c812
15255156a2e413
hex1288bbb04340

20378473743168 has 56 divisors (see below), whose sum is σ = 59908939018560. Its totient is φ = 6792824580480.

The previous prime is 20378473743163. The next prime is 20378473743209. The reversal of 20378473743168 is 86134737487302.

20378473743168 is a `hidden beast` number, since 2 + 0 + 3 + 7 + 8 + 473 + 74 + 31 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20378473743163) by changing a digit.

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, 5896547388 + ... + 5896550843.

Almost surely, 220378473743168 is an apocalyptic number.

It is an amenable number.

20378473743168 is an abundant number, since it is smaller than the sum of its proper divisors (39530465275392).

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

20378473743168 is a wasteful number, since it uses less digits than its factorization.

20378473743168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11793098252 (or 11793098236 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 63.

The spelling of 20378473743168 in words is "twenty trillion, three hundred seventy-eight billion, four hundred seventy-three million, seven hundred forty-three thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 11793098231 23586196462 35379294693 47172392924 70758589386 94344785848 106137884079 141517178772 188689571696 212275768158 283034357544 318413652237 377379143392 424551536316 566068715088 636827304474 754758286784 849103072632 1132137430176 1273654608948 1698206145264 2264274860352 2547309217896 3396412290528 5094618435792 6792824581056 10189236871584 20378473743168