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214897193 = 725038719
BaseRepresentation
bin11001100111100…
…01001000101001
3112222100220112022
430303301020221
5420003202233
633153554225
75216411300
oct1463611051
9488326468
10214897193
11100338495
125bb75975
13356a1c04
142077d437
1513ced398
hexccf1229

214897193 has 12 divisors (see below), whose sum is σ = 250508160. Its totient is φ = 183810312.

The previous prime is 214897183. The next prime is 214897213. The reversal of 214897193 is 391798412.

It is not a de Polignac number, because 214897193 - 26 = 214897129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214897183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20288 + ... + 29006.

It is an arithmetic number, because the mean of its divisors is an integer number (20875680).

Almost surely, 2214897193 is an apocalyptic number.

It is an amenable number.

214897193 is a deficient number, since it is larger than the sum of its proper divisors (35610967).

214897193 is an equidigital number, since it uses as much as digits as its factorization.

214897193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9236 (or 9229 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 214897193 is about 14659.3721898313. The cubic root of 214897193 is about 598.9771396595.

It can be divided in two parts, 21489 and 7193, that added together give a palindrome (28682).

The spelling of 214897193 in words is "two hundred fourteen million, eight hundred ninety-seven thousand, one hundred ninety-three".

Divisors: 1 7 49 503 3521 8719 24647 61033 427231 4385657 30699599 214897193