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768383583381 = 321063490316381
BaseRepresentation
bin10110010111001110011…
…10110000010010010101
32201110022222021100212100
423023213032300102111
5100042122144132011
61344553542512313
7106341155460201
oct13134716602225
92643288240770
10768383583381
11276962556a67
12104b02135699
13575c5a5144b
1429293391b01
1514ec2824d56
hexb2e73b0495

768383583381 has 24 divisors (see below), whose sum is σ = 1111225920896. Its totient is φ = 511638210720.

The previous prime is 768383583353. The next prime is 768383583403. The reversal of 768383583381 is 183385383867.

768383583381 is a `hidden beast` number, since 76 + 83 + 8 + 35 + 83 + 381 = 666.

768383583381 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 768383583381 - 210 = 768383582357 is a prime.

It is a super-3 number, since 3×7683835833813 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768383583311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46898811 + ... + 46915191.

Almost surely, 2768383583381 is an apocalyptic number.

It is an amenable number.

768383583381 is a deficient number, since it is larger than the sum of its proper divisors (342842337515).

768383583381 is a wasteful number, since it uses less digits than its factorization.

768383583381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22353 (or 22350 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 768383583381 in words is "seven hundred sixty-eight billion, three hundred eighty-three million, five hundred eighty-three thousand, three hundred eighty-one".

Divisors: 1 3 9 1063 3189 4903 9567 14709 16381 44127 49143 147429 5211889 15635667 17413003 46907001 52239009 80316043 156717027 240948129 722844387 85375953709 256127861127 768383583381