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214307443 = 733619109
BaseRepresentation
bin11001100011000…
…01001001110011
3112221020221112201
430301201021303
5414330314233
633133204031
75211404020
oct1461411163
9487227481
10214307443
11aaa75399
125b930617
133552664c
1420668547
1513c3377d
hexcc61273

214307443 has 8 divisors (see below), whose sum is σ = 245022560. Its totient is φ = 183617280.

The previous prime is 214307413. The next prime is 214307449. The reversal of 214307443 is 344703412.

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

It is not a de Polignac number, because 214307443 - 217 = 214176371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214307449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18973 + ... + 28081.

It is an arithmetic number, because the mean of its divisors is an integer number (30627820).

Almost surely, 2214307443 is an apocalyptic number.

214307443 is a deficient number, since it is larger than the sum of its proper divisors (30715117).

214307443 is an equidigital number, since it uses as much as digits as its factorization.

214307443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12477.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 214307443 is about 14639.2432522996. The cubic root of 214307443 is about 598.4287062446.

The spelling of 214307443 in words is "two hundred fourteen million, three hundred seven thousand, four hundred forty-three".

Divisors: 1 7 3361 9109 23527 63763 30615349 214307443