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214168893 = 31923163363
BaseRepresentation
bin11001100001111…
…11010100111101
3112220222220111020
430300333110331
5414311401033
633130214353
75210256051
oct1460772475
9486886436
10214168893
11aa990294
125b8843b9
13354a8573
142062dc61
1513c076b3
hexcc3f53d

214168893 has 16 divisors (see below), whose sum is σ = 313658880. Its totient is φ = 129382704.

The previous prime is 214168883. The next prime is 214168897. The reversal of 214168893 is 398861412.

It is not a de Polignac number, because 214168893 - 213 = 214160701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214168897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80371 + ... + 82992.

It is an arithmetic number, because the mean of its divisors is an integer number (19603680).

Almost surely, 2214168893 is an apocalyptic number.

214168893 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

214168893 is a deficient number, since it is larger than the sum of its proper divisors (99489987).

214168893 is a wasteful number, since it uses less digits than its factorization.

214168893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163408.

The product of its digits is 82944, while the sum is 42.

The square root of 214168893 is about 14634.5103437047. The cubic root of 214168893 is about 598.2997168355.

The spelling of 214168893 in words is "two hundred fourteen million, one hundred sixty-eight thousand, eight hundred ninety-three".

Divisors: 1 3 19 23 57 69 437 1311 163363 490089 3103897 3757349 9311691 11272047 71389631 214168893