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19206414020 = 22517233110039
BaseRepresentation
bin10001111000110010…
…101001111011000100
31211120112020220221102
4101320302221323010
5303313320222040
612453500035232
71246644553103
oct217062517304
954515226842
1019206414020
11816657a142
123880232b18
131a7115c331
14d02b4a03a
1577625e515
hex478ca9ec4

19206414020 has 72 divisors (see below), whose sum is σ = 42979312320. Its totient is φ = 7208087040.

The previous prime is 19206413987. The next prime is 19206414023. The reversal of 19206414020 is 2041460291.

It is not an unprimeable number, because it can be changed into a prime (19206414023) 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 23 ways as a sum of consecutive naturals, for example, 1908161 + ... + 1918199.

Almost surely, 219206414020 is an apocalyptic number.

19206414020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19206414020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21489656160).

19206414020 is an abundant number, since it is smaller than the sum of its proper divisors (23772898300).

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

19206414020 is a wasteful number, since it uses less digits than its factorization.

19206414020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10413 (or 10394 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 19206414020 in words is "nineteen billion, two hundred six million, four hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 331 340 578 662 1156 1324 1445 1655 2890 3310 5627 5780 6620 10039 11254 20078 22508 28135 40156 50195 56270 95659 100390 112540 170663 191318 200780 341326 382636 478295 682652 853315 956590 1706630 1913180 2901271 3322909 3413260 5802542 6645818 11605084 13291636 14506355 16614545 29012710 33229090 56489453 58025420 66458180 112978906 225957812 282447265 564894530 960320701 1129789060 1920641402 3841282804 4801603505 9603207010 19206414020