Search a number
-
+
19055791935089 = 7213109274448633
BaseRepresentation
bin1000101010100110001011…
…01101011000111001110001
32111110201022220102001001222
410111103011231120321301
54444202230213410324
6104310035430234425
74004510200626500
oct425230555307161
974421286361058
1019055791935089
116087574844808
1221791821b5a15
13a82c51a04850
1449c43b872837
15230a416ed55e
hex1154c5b58e71

19055791935089 has 24 divisors (see below), whose sum is σ = 24091101092520. Its totient is φ = 14938787937024.

The previous prime is 19055791935083. The next prime is 19055791935157. The reversal of 19055791935089 is 98053919755091.

It can be written as a sum of positive squares in 4 ways, for example, as 89697255025 + 18966094680064 = 299495^2 + 4355008^2 .

It is not a de Polignac number, because 19055791935089 - 24 = 19055791935073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19055791935083) 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, 137154884 + ... + 137293749.

It is an arithmetic number, because the mean of its divisors is an integer number (1003795878855).

Almost surely, 219055791935089 is an apocalyptic number.

It is an amenable number.

19055791935089 is a deficient number, since it is larger than the sum of its proper divisors (5035309157431).

19055791935089 is a wasteful number, since it uses less digits than its factorization.

19055791935089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274448769 (or 274448762 counting only the distinct ones).

The product of its (nonzero) digits is 137781000, while the sum is 71.

The spelling of 19055791935089 in words is "nineteen trillion, fifty-five billion, seven hundred ninety-one million, nine hundred thirty-five thousand, eighty-nine".

Divisors: 1 7 13 49 91 109 637 763 1417 5341 9919 69433 274448633 1921140431 3567832229 13447983017 24974825603 29914900997 174823779221 209404306979 388893712961 1465830148853 2722255990727 19055791935089