Search a number
-
+
16801361 = 142311807
BaseRepresentation
bin100000000010…
…1111001010001
31011121121010122
41000011321101
513300120421
61400040025
7262544363
oct100057121
934547118
1016801361
119536125
125763015
133633545
142334d33
15171d2ab
hex1005e51

16801361 has 4 divisors (see below), whose sum is σ = 16814592. Its totient is φ = 16788132.

The previous prime is 16801333. The next prime is 16801363. The reversal of 16801361 is 16310861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16310861 = 72330123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16801361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16801361.

It is not an unprimeable number, because it can be changed into a prime (16801363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4481 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (4203648).

Almost surely, 216801361 is an apocalyptic number.

It is an amenable number.

16801361 is a deficient number, since it is larger than the sum of its proper divisors (13231).

16801361 is a wasteful number, since it uses less digits than its factorization.

16801361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 16801361 is about 4098.9463280214. The cubic root of 16801361 is about 256.1227489546.

The spelling of 16801361 in words is "sixteen million, eight hundred one thousand, three hundred sixty-one".

Divisors: 1 1423 11807 16801361