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438387214 = 2859255173
BaseRepresentation
bin11010001000010…
…100001000001110
31010112220101012111
4122020110020032
51344211342324
6111300054234
713602141556
oct3210241016
91115811174
10438387214
11205504891
1210299437a
136ca92025
1442318166
1528747794
hex1a21420e

438387214 has 8 divisors (see below), whose sum is σ = 658348920. Its totient is φ = 218937576.

The previous prime is 438387203. The next prime is 438387217. The reversal of 438387214 is 412783834.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438387217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125869 + ... + 129304.

It is an arithmetic number, because the mean of its divisors is an integer number (82293615).

Almost surely, 2438387214 is an apocalyptic number.

438387214 is a deficient number, since it is larger than the sum of its proper divisors (219961706).

438387214 is a wasteful number, since it uses less digits than its factorization.

438387214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256034.

The product of its digits is 129024, while the sum is 40.

The square root of 438387214 is about 20937.6983930899. The cubic root of 438387214 is about 759.6600591892.

The spelling of 438387214 in words is "four hundred thirty-eight million, three hundred eighty-seven thousand, two hundred fourteen".

Divisors: 1 2 859 1718 255173 510346 219193607 438387214