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214218453 = 3293243707
BaseRepresentation
bin11001100010010…
…11011011010101
3112221002102110210
430301023123111
5414314442303
633131240033
75210553411
oct1461133325
9487072423
10214218453
11aaa14549
125b8a9019
13354c4ca7
1420643d41
1513c17203
hexcc4b6d5

214218453 has 8 divisors (see below), whose sum is σ = 286600608. Its totient is φ = 142324304.

The previous prime is 214218451. The next prime is 214218467. The reversal of 214218453 is 354812412.

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

It is a cyclic number.

It is not a de Polignac number, because 214218453 - 21 = 214218451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214218453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214218451) 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, 120975 + ... + 122732.

It is an arithmetic number, because the mean of its divisors is an integer number (35825076).

Almost surely, 2214218453 is an apocalyptic number.

It is an amenable number.

214218453 is a deficient number, since it is larger than the sum of its proper divisors (72382155).

214218453 is a wasteful number, since it uses less digits than its factorization.

214218453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244003.

The product of its digits is 7680, while the sum is 30.

The square root of 214218453 is about 14636.2035036412. The cubic root of 214218453 is about 598.3458633551.

The spelling of 214218453 in words is "two hundred fourteen million, two hundred eighteen thousand, four hundred fifty-three".

Divisors: 1 3 293 879 243707 731121 71406151 214218453