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14309387 = 73211929
BaseRepresentation
bin110110100101…
…100000001011
3222220222210022
4312211200023
512130400022
61230411055
7232425221
oct66454013
928828708
1014309387
118093944
124960a8b
132c701c1
141c86b11
1513c9c42
hexda580b

14309387 has 8 divisors (see below), whose sum is σ = 14589840. Its totient is φ = 14031360.

The previous prime is 14309353. The next prime is 14309419. The reversal of 14309387 is 78390341.

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 14309387 - 28 = 14309131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14309327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14939 + ... + 15867.

It is an arithmetic number, because the mean of its divisors is an integer number (1823730).

Almost surely, 214309387 is an apocalyptic number.

14309387 is a deficient number, since it is larger than the sum of its proper divisors (280453).

14309387 is an equidigital number, since it uses as much as digits as its factorization.

14309387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 14309387 is about 3782.7750395708. The cubic root of 14309387 is about 242.7767033151.

The spelling of 14309387 in words is "fourteen million, three hundred nine thousand, three hundred eighty-seven".

Divisors: 1 73 211 929 15403 67817 196019 14309387