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214123191 = 3137520981
BaseRepresentation
bin11001100001101…
…00001010110111
3112220220120210120
430300310022313
5414303420231
633125223023
75210005602
oct1460641267
9486816716
10214123191
11aa959a17
125b861a73
1335490819
142061b339
1513be8d96
hexcc342b7

214123191 has 8 divisors (see below), whose sum is σ = 287582064. Its totient is φ = 141706560.

The previous prime is 214123183. The next prime is 214123199. The reversal of 214123191 is 191321412.

214123191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (214123183) and next prime (214123199).

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

It is not a de Polignac number, because 214123191 - 23 = 214123183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214123199) 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, 260080 + ... + 260901.

It is an arithmetic number, because the mean of its divisors is an integer number (35947758).

Almost surely, 2214123191 is an apocalyptic number.

214123191 is a deficient number, since it is larger than the sum of its proper divisors (73458873).

214123191 is a wasteful number, since it uses less digits than its factorization.

214123191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521121.

The product of its digits is 432, while the sum is 24.

The square root of 214123191 is about 14632.9488142343. The cubic root of 214123191 is about 598.2571562836.

The spelling of 214123191 in words is "two hundred fourteen million, one hundred twenty-three thousand, one hundred ninety-one".

Divisors: 1 3 137 411 520981 1562943 71374397 214123191