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214512431 = 756953857
BaseRepresentation
bin11001100100100…
…11001100101111
3112221122100201212
430302103030233
5414403344211
633141425035
75213216450
oct1462231457
9487570655
10214512431
111000a5401
125ba0b17b
1335598a43
14206bd127
1513c7438b
hexcc9332f

214512431 has 8 divisors (see below), whose sum is σ = 245592480. Its totient is φ = 183541248.

The previous prime is 214512407. The next prime is 214512433. The reversal of 214512431 is 134215412.

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

It is a cyclic number.

It is not a de Polignac number, because 214512431 - 26 = 214512367 is a prime.

It is a super-2 number, since 2×2145124312 = 92031166107059522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214512397 and 214512406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214512433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22946 + ... + 30911.

It is an arithmetic number, because the mean of its divisors is an integer number (30699060).

Almost surely, 2214512431 is an apocalyptic number.

214512431 is a deficient number, since it is larger than the sum of its proper divisors (31080049).

214512431 is an equidigital number, since it uses as much as digits as its factorization.

214512431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54433.

The product of its digits is 960, while the sum is 23.

The square root of 214512431 is about 14646.2428970709. The cubic root of 214512431 is about 598.6194471892.

Adding to 214512431 its reverse (134215412), we get a palindrome (348727843).

The spelling of 214512431 in words is "two hundred fourteen million, five hundred twelve thousand, four hundred thirty-one".

Divisors: 1 7 569 3983 53857 376999 30644633 214512431