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214404530 = 2521440453
BaseRepresentation
bin11001100011110…
…00110110110010
3112221102212201112
430301320312302
5414341421110
633135233322
75212260044
oct1461706662
9487385645
10214404530
1110003132a
125b978842
133555b8b2
1420691a94
1513c52405
hexcc78db2

214404530 has 8 divisors (see below), whose sum is σ = 385928172. Its totient is φ = 85761808.

The previous prime is 214404523. The next prime is 214404559. The reversal of 214404530 is 35404412.

It can be written as a sum of positive squares in 2 ways, for example, as 214124689 + 279841 = 14633^2 + 529^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 214404496 and 214404505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10720217 + ... + 10720236.

Almost surely, 2214404530 is an apocalyptic number.

214404530 is a deficient number, since it is larger than the sum of its proper divisors (171523642).

214404530 is a wasteful number, since it uses less digits than its factorization.

214404530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21440460.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 214404530 is about 14642.5588610734. The cubic root of 214404530 is about 598.5190606682.

Adding to 214404530 its reverse (35404412), we get a palindrome (249808942).

The spelling of 214404530 in words is "two hundred fourteen million, four hundred four thousand, five hundred thirty".

Divisors: 1 2 5 10 21440453 42880906 107202265 214404530