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20192747382 = 23219431136991
BaseRepresentation
bin10010110011100101…
…001101111101110110
31221010021012211221200
4102303211031331312
5312323320404012
613135412353330
71313252343423
oct226345157566
957107184850
1020192747382
118622308a85
123ab6615846
131b9a5c2a42
14d97b3ad4a
157d2b413dc
hex4b394df76

20192747382 has 48 divisors (see below), whose sum is σ = 46160824320. Its totient is φ = 6361815600.

The previous prime is 20192747369. The next prime is 20192747387. The reversal of 20192747382 is 28374729102.

20192747382 is a `hidden beast` number, since 201 + 9 + 27 + 47 + 382 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20192747387) 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, 78907 + ... + 215897.

It is an arithmetic number, because the mean of its divisors is an integer number (961683840).

Almost surely, 220192747382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20192747382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23080412160).

20192747382 is an abundant number, since it is smaller than the sum of its proper divisors (25968076938).

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

20192747382 is a wasteful number, since it uses less digits than its factorization.

20192747382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137449 (or 137446 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 20192747382 in words is "twenty billion, one hundred ninety-two million, seven hundred forty-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 431 862 1293 2586 3879 7758 8189 16378 24567 49134 73701 136991 147402 273982 410973 821946 1232919 2465838 2602829 5205658 7808487 15616974 23425461 46850922 59043121 118086242 177129363 354258726 531388089 1062776178 1121819299 2243638598 3365457897 6730915794 10096373691 20192747382