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214664252 = 221139712289
BaseRepresentation
bin11001100101110…
…00010000111100
3112221221001222212
430302320100330
5414423224002
633144555552
75214421205
oct1462702074
9487831885
10214664252
11100199480
125ba82bb8
133561cb8a
142071c5ac
1513ca4352
hexccb843c

214664252 has 24 divisors (see below), whose sum is σ = 410879280. Its totient is φ = 97320960.

The previous prime is 214664237. The next prime is 214664309. The reversal of 214664252 is 252466412.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11324 + ... + 23612.

It is an arithmetic number, because the mean of its divisors is an integer number (17119970).

Almost surely, 2214664252 is an apocalyptic number.

214664252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

214664252 is a deficient number, since it is larger than the sum of its proper divisors (196215028).

214664252 is a wasteful number, since it uses less digits than its factorization.

214664252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12701 (or 12699 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 214664252 is about 14651.4249136389. The cubic root of 214664252 is about 598.7606380288.

It can be divided in two parts, 214 and 664252, that added together give a palindrome (664466).

The spelling of 214664252 in words is "two hundred fourteen million, six hundred sixty-four thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 44 397 794 1588 4367 8734 12289 17468 24578 49156 135179 270358 540716 4878733 9757466 19514932 53666063 107332126 214664252