Search a number
-
+
14081681 = 231733539
BaseRepresentation
bin110101101101…
…111010010001
3222111102102202
4311231322101
512101103211
61221452545
7230456315
oct65557221
928442382
1014081681
117a48859
124871155
132bc0673
141c27b45
15138253b
hexd6de91

14081681 has 8 divisors (see below), whose sum is σ = 14783040. Its totient is φ = 13387792.

The previous prime is 14081677. The next prime is 14081687. The reversal of 14081681 is 18618041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14081681 - 22 = 14081677 is a prime.

It is a super-2 number, since 2×140816812 = 396587479571522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14081687) 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, 2210 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (1847880).

Almost surely, 214081681 is an apocalyptic number.

It is an amenable number.

14081681 is a deficient number, since it is larger than the sum of its proper divisors (701359).

14081681 is a wasteful number, since it uses less digits than its factorization.

14081681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 14081681 is about 3752.5565951761. The cubic root of 14081681 is about 241.4820388233.

The spelling of 14081681 in words is "fourteen million, eighty-one thousand, six hundred eighty-one".

Divisors: 1 23 173 3539 3979 81397 612247 14081681