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14308906 = 27154453
BaseRepresentation
bin110110100101…
…011000101010
3222220222010111
4312211120222
512130341111
61230404534
7232423633
oct66453052
928828114
1014308906
118093547
12496074a
132c6cc11
141c8688a
1513c9a21
hexda562a

14308906 has 4 divisors (see below), whose sum is σ = 21463362. Its totient is φ = 7154452.

The previous prime is 14308901. The next prime is 14308907. The reversal of 14308906 is 60980341.

14308906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60980341 = 463131707.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 3478225 = 3291^2 + 1865^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (14308901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3577225 + ... + 3577228.

Almost surely, 214308906 is an apocalyptic number.

14308906 is a deficient number, since it is larger than the sum of its proper divisors (7154456).

14308906 is an equidigital number, since it uses as much as digits as its factorization.

14308906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154455.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 14308906 is about 3782.7114613726. The cubic root of 14308906 is about 242.7739830285.

The spelling of 14308906 in words is "fourteen million, three hundred eight thousand, nine hundred six".

Divisors: 1 2 7154453 14308906