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214320530 = 25174197317
BaseRepresentation
bin11001100011001…
…00010110010010
3112221021121111102
430301210112102
5414331224110
633133344402
75211460124
oct1461442622
9487247442
10214320530
11aaa84206
125b938102
133552c5a8
142066d214
1513c375a5
hexcc64592

214320530 has 64 divisors (see below), whose sum is σ = 424079712. Its totient is φ = 77660160.

The previous prime is 214320521. The next prime is 214320559. The reversal of 214320530 is 35023412.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 2647129 + 211673401 = 1627^2 + 14549^2 .

It is a super-3 number, since 3×2143205303 (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675932 + ... + 676248.

Almost surely, 2214320530 is an apocalyptic number.

214320530 is a deficient number, since it is larger than the sum of its proper divisors (209759182).

214320530 is a wasteful number, since it uses less digits than its factorization.

214320530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 214320530 is about 14639.6902289632. The cubic root of 214320530 is about 598.4408873071.

Adding to 214320530 its reverse (35023412), we get a palindrome (249343942).

The spelling of 214320530 in words is "two hundred fourteen million, three hundred twenty thousand, five hundred thirty".

Divisors: 1 2 5 10 17 34 41 82 85 97 170 194 205 317 410 485 634 697 970 1394 1585 1649 3170 3298 3485 3977 5389 6970 7954 8245 10778 12997 16490 19885 25994 26945 30749 39770 53890 61498 64985 67609 129970 135218 153745 220949 307490 338045 441898 522733 676090 1045466 1104745 1260709 2209490 2521418 2613665 5227330 6303545 12607090 21432053 42864106 107160265 214320530