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214309293 = 311173112323
BaseRepresentation
bin11001100011000…
…01100110101101
3112221021001002020
430301201212231
5414330344133
633133220353
75211412302
oct1461414655
9487231066
10214309293
11aaa76820
125b9316b9
1335527443
14206690a9
1513c340b3
hexcc619ad

214309293 has 32 divisors (see below), whose sum is σ = 340733952. Its totient is φ = 118291200.

The previous prime is 214309253. The next prime is 214309301. The reversal of 214309293 is 392903412.

214309293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214309293 - 26 = 214309229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214309213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11230 + ... + 23552.

It is an arithmetic number, because the mean of its divisors is an integer number (10647936).

Almost surely, 2214309293 is an apocalyptic number.

It is an amenable number.

214309293 is a deficient number, since it is larger than the sum of its proper divisors (126424659).

214309293 is a wasteful number, since it uses less digits than its factorization.

214309293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12385.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 214309293 is about 14639.3064384895. The cubic root of 214309293 is about 598.4304282099.

The spelling of 214309293 in words is "two hundred fourteen million, three hundred nine thousand, two hundred ninety-three".

Divisors: 1 3 11 17 31 33 51 93 187 341 527 561 1023 1581 5797 12323 17391 36969 135553 209491 382013 406659 628473 1146039 2304401 4202143 6494221 6913203 12606429 19482663 71436431 214309293