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214443430 = 2531719743
BaseRepresentation
bin11001100100000…
…10010110100110
3112221111212002021
430302002112212
5414344142210
633140133354
75212511335
oct1462022646
9487455067
10214443430
11100058583
125b99725a
1335573506
14206a1d1c
1513c5dbda
hexcc825a6

214443430 has 32 divisors (see below), whose sum is σ = 404103168. Its totient is φ = 81832800.

The previous prime is 214443419. The next prime is 214443433. The reversal of 214443430 is 34344412.

It is a junction number, because it is equal to n+sod(n) for n = 214443395 and 214443404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214443433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17139 + ... + 26881.

It is an arithmetic number, because the mean of its divisors is an integer number (12628224).

Almost surely, 2214443430 is an apocalyptic number.

214443430 is a deficient number, since it is larger than the sum of its proper divisors (189659738).

214443430 is a wasteful number, since it uses less digits than its factorization.

214443430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 214443430 is about 14643.8871205701. The cubic root of 214443430 is about 598.5552554624. Note that the first 3 decimals are identical.

Adding to 214443430 its reverse (34344412), we get a palindrome (248787842).

The spelling of 214443430 in words is "two hundred fourteen million, four hundred forty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 31 62 71 142 155 310 355 710 2201 4402 9743 11005 19486 22010 48715 97430 302033 604066 691753 1383506 1510165 3020330 3458765 6917530 21444343 42888686 107221715 214443430