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214077385 = 542815477
BaseRepresentation
bin11001100001010…
…00111111001001
3112220211020222001
430300220333021
5414300434020
633124231001
75206425214
oct1460507711
9486736861
10214077385
11aa928565
125b83b461
1335475a12
142060877b
1513bda50a
hexcc28fc9

214077385 has 4 divisors (see below), whose sum is σ = 256892868. Its totient is φ = 171261904.

The previous prime is 214077373. The next prime is 214077397. The reversal of 214077385 is 583770412.

214077385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (214077373) and next prime (214077397).

It can be written as a sum of positive squares in 2 ways, for example, as 125171344 + 88906041 = 11188^2 + 9429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214077385 is a prime.

It is a Duffinian number.

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, 21407734 + ... + 21407743.

It is an arithmetic number, because the mean of its divisors is an integer number (64223217).

Almost surely, 2214077385 is an apocalyptic number.

It is an amenable number.

214077385 is a deficient number, since it is larger than the sum of its proper divisors (42815483).

214077385 is an equidigital number, since it uses as much as digits as its factorization.

214077385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42815482.

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

The square root of 214077385 is about 14631.3835641063. The cubic root of 214077385 is about 598.2144928033.

The spelling of 214077385 in words is "two hundred fourteen million, seventy-seven thousand, three hundred eighty-five".

Divisors: 1 5 42815477 214077385