Search a number
-
+
19207398863328 = 2531324143671519
BaseRepresentation
bin1000101111000000100100…
…01011111011000111100000
32112000012122122120222002020
410113200102023323013200
510004143223102111303
6104503431321021440
74021455151354644
oct427402213730740
975005578528066
1019207398863328
1161358a2a16925
1221a2633024880
13a94333174400
144a59007dcc24
152349663e9a53
hex1178122fb1e0

19207398863328 has 288 divisors, whose sum is σ = 57228524559360. Its totient is φ = 5631725998080.

The previous prime is 19207398863281. The next prime is 19207398863329. The reversal of 19207398863328 is 82336889370291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19207398863329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28267153 + ... + 28938671.

It is an arithmetic number, because the mean of its divisors is an integer number (198710154720).

Almost surely, 219207398863328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19207398863328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28614262279680).

19207398863328 is an abundant number, since it is smaller than the sum of its proper divisors (38021125696032).

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

19207398863328 is a wasteful number, since it uses less digits than its factorization.

19207398863328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671642 (or 671621 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 69.

The spelling of 19207398863328 in words is "nineteen trillion, two hundred seven billion, three hundred ninety-eight million, eight hundred sixty-three thousand, three hundred twenty-eight".