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214705443 = 3106966949
BaseRepresentation
bin11001100110000…
…10010100100011
3112222000011111110
430303002110203
5414431033233
633145514403
75214652251
oct1463022443
9488004443
10214705443
11100217417
125baa2a03
1335635854
142072d5d1
1513cb1663
hexccc2523

214705443 has 8 divisors (see below), whose sum is σ = 286546000. Its totient is φ = 143000928.

The previous prime is 214705433. The next prime is 214705459. The reversal of 214705443 is 344507412.

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

It is a de Polignac number, because none of the positive numbers 2k-214705443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214705443.

It is not an unprimeable number, because it can be changed into a prime (214705423) 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, 30268 + ... + 36681.

It is an arithmetic number, because the mean of its divisors is an integer number (35818250).

Almost surely, 2214705443 is an apocalyptic number.

214705443 is a deficient number, since it is larger than the sum of its proper divisors (71840557).

214705443 is a wasteful number, since it uses less digits than its factorization.

214705443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68021.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 214705443 is about 14652.8305456659. The cubic root of 214705443 is about 598.7989334473.

The spelling of 214705443 in words is "two hundred fourteen million, seven hundred five thousand, four hundred forty-three".

Divisors: 1 3 1069 3207 66949 200847 71568481 214705443