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214102220 = 22510705111
BaseRepresentation
bin11001100001011…
…11000011001100
3112220212112000212
430300233003030
5414302232340
633124541552
75206560503
oct1460570314
9486775025
10214102220
11aa945192
125b8518b8
1335484107
142061383a
1513be2a65
hexcc2f0cc

214102220 has 12 divisors (see below), whose sum is σ = 449614704. Its totient is φ = 85640880.

The previous prime is 214102219. The next prime is 214102223. The reversal of 214102220 is 22201412.

It is a junction number, because it is equal to n+sod(n) for n = 214102195 and 214102204.

It is not an unprimeable number, because it can be changed into a prime (214102223) 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 3 ways as a sum of consecutive naturals, for example, 5352536 + ... + 5352575.

It is an arithmetic number, because the mean of its divisors is an integer number (37467892).

Almost surely, 2214102220 is an apocalyptic number.

214102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214102220 is an abundant number, since it is smaller than the sum of its proper divisors (235512484).

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

214102220 is a wasteful number, since it uses less digits than its factorization.

214102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705120 (or 10705118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 214102220 is about 14632.2322288843. The cubic root of 214102220 is about 598.2376247539.

Adding to 214102220 its reverse (22201412), we get a palindrome (236303632).

The spelling of 214102220 in words is "two hundred fourteen million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10705111 21410222 42820444 53525555 107051110 214102220