Search a number
-
+
11905794168 = 2331217407621
BaseRepresentation
bin10110001011010010…
…00000000001111000
31010201201212000020120
423011221000001320
5143340340403133
65245222253240
7601015403112
oct130551000170
933651760216
1011905794168
11505a568414
122383287220
13117979c428
1480d2d83b2
1549a362ab3
hex2c5a40078

11905794168 has 32 divisors (see below), whose sum is σ = 29789015760. Its totient is φ = 3965327360.

The previous prime is 11905794167. The next prime is 11905794181. The reversal of 11905794168 is 86149750911.

It is a self number, because there is not a number n which added to its sum of digits gives 11905794168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11905794163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174603 + ... + 233018.

Almost surely, 211905794168 is an apocalyptic number.

It is an amenable number.

11905794168 is an abundant number, since it is smaller than the sum of its proper divisors (17883221592).

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

11905794168 is a wasteful number, since it uses less digits than its factorization.

11905794168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408847 (or 408843 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 11905794168 in words is "eleven billion, nine hundred five million, seven hundred ninety-four thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 1217 2434 3651 4868 7302 9736 14604 29208 407621 815242 1222863 1630484 2445726 3260968 4891452 9782904 496074757 992149514 1488224271 1984299028 2976448542 3968598056 5952897084 11905794168