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214873057 = 730696151
BaseRepresentation
bin11001100111010…
…11001111100001
3112222022200102101
430303223033201
5420001414212
633153250401
75216251030
oct1463531741
9488280371
10214873057
11100321343
125bb63a01
1335693c29
1420774717
1513ce6157
hexcceb3e1

214873057 has 4 divisors (see below), whose sum is σ = 245569216. Its totient is φ = 184176900.

The previous prime is 214873037. The next prime is 214873073. The reversal of 214873057 is 750378412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214873057 - 27 = 214872929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214873007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15348069 + ... + 15348082.

It is an arithmetic number, because the mean of its divisors is an integer number (61392304).

Almost surely, 2214873057 is an apocalyptic number.

It is an amenable number.

214873057 is a deficient number, since it is larger than the sum of its proper divisors (30696159).

214873057 is an equidigital number, since it uses as much as digits as its factorization.

214873057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30696158.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 214873057 is about 14658.5489391004. The cubic root of 214873057 is about 598.9547142797.

The spelling of 214873057 in words is "two hundred fourteen million, eight hundred seventy-three thousand, fifty-seven".

Divisors: 1 7 30696151 214873057