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438814234 = 21719679279
BaseRepresentation
bin11010001001111…
…100011000011010
31010120201001222001
4122021330120122
51344314023414
6111313151214
713605600535
oct3211743032
91116631861
10438814234
112057766a1
12102b5b50a
136cbb14c1
14423c9a1c
15287ce074
hex1a27c61a

438814234 has 16 divisors (see below), whose sum is σ = 733622400. Its totient is φ = 195632064.

The previous prime is 438814219. The next prime is 438814241. The reversal of 438814234 is 432418834.

It is a super-2 number, since 2×4388142342 = 385115863922013512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438814193 and 438814202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338994 + ... + 340285.

It is an arithmetic number, because the mean of its divisors is an integer number (45851400).

Almost surely, 2438814234 is an apocalyptic number.

438814234 is a deficient number, since it is larger than the sum of its proper divisors (294808166).

438814234 is a wasteful number, since it uses less digits than its factorization.

438814234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679317.

The product of its digits is 73728, while the sum is 37.

The square root of 438814234 is about 20947.8933069653. The cubic root of 438814234 is about 759.9066332671.

The spelling of 438814234 in words is "four hundred thirty-eight million, eight hundred fourteen thousand, two hundred thirty-four".

Divisors: 1 2 17 19 34 38 323 646 679279 1358558 11547743 12906301 23095486 25812602 219407117 438814234