Search a number
-
+
14070681 = 321563409
BaseRepresentation
bin110101101011…
…001110011001
3222110212100100
4311223032121
512100230211
61221330013
7230412252
oct65531631
928425310
1014070681
117a40569
124866909
132bb8661
141c23b29
15137e156
hexd6b399

14070681 has 6 divisors (see below), whose sum is σ = 20324330. Its totient is φ = 9380448.

The previous prime is 14070673. The next prime is 14070691. The reversal of 14070681 is 18607041.

It is a happy number.

14070681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 3240000 = 3291^2 + 1800^2 .

It is not a de Polignac number, because 14070681 - 23 = 14070673 is a prime.

It is a super-2 number, since 2×140706812 = 395968127607522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14070601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 781696 + ... + 781713.

Almost surely, 214070681 is an apocalyptic number.

It is an amenable number.

14070681 is a deficient number, since it is larger than the sum of its proper divisors (6253649).

14070681 is a wasteful number, since it uses less digits than its factorization.

14070681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563415 (or 1563412 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 14070681 is about 3751.0906414002. The cubic root of 14070681 is about 241.4191440029.

The spelling of 14070681 in words is "fourteen million, seventy thousand, six hundred eighty-one".

Divisors: 1 3 9 1563409 4690227 14070681