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214806847 = 1396132521
BaseRepresentation
bin11001100110110…
…11000100111111
3112222012022121011
430303123010333
5414442304342
633152020051
75215554013
oct1463330477
9488168534
10214806847
11100286622
125bb31627
133566ca58
1420758543
1513cd1717
hexccdb13f

214806847 has 8 divisors (see below), whose sum is σ = 216791120. Its totient is φ = 212829120.

The previous prime is 214806817. The next prime is 214806853. The reversal of 214806847 is 748608412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214806847 is a prime.

It is a super-2 number, since 2×2148068472 = 92283963036162818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214806817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83947 + ... + 86467.

It is an arithmetic number, because the mean of its divisors is an integer number (27098890).

Almost surely, 2214806847 is an apocalyptic number.

214806847 is a deficient number, since it is larger than the sum of its proper divisors (1984273).

214806847 is a wasteful number, since it uses less digits than its factorization.

214806847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 214806847 is about 14656.2903560212. The cubic root of 214806847 is about 598.8931882387.

The spelling of 214806847 in words is "two hundred fourteen million, eight hundred six thousand, eight hundred forty-seven".

Divisors: 1 139 613 2521 85207 350419 1545373 214806847