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214108636 = 22721092391
BaseRepresentation
bin11001100001100…
…00100111011100
3112220212211211111
430300300213130
5414302434021
633125031404
75206615300
oct1460604734
9486784744
10214108636
11aa949a95
125b855564
1335487001
1420615d00
1513be48e1
hexcc309dc

214108636 has 18 divisors (see below), whose sum is σ = 435864408. Its totient is φ = 91760760.

The previous prime is 214108621. The next prime is 214108639. The reversal of 214108636 is 636801412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 214108598 and 214108607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214108639) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 546000 + ... + 546391.

Almost surely, 2214108636 is an apocalyptic number.

It is an amenable number.

214108636 is an abundant number, since it is smaller than the sum of its proper divisors (221755772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214108636 is a wasteful number, since it uses less digits than its factorization.

214108636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092409 (or 1092400 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 214108636 is about 14632.4514692515. The cubic root of 214108636 is about 598.2436004887.

The spelling of 214108636 in words is "two hundred fourteen million, one hundred eight thousand, six hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 98 196 1092391 2184782 4369564 7646737 15293474 30586948 53527159 107054318 214108636