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214235220 = 223518119727
BaseRepresentation
bin11001100010011…
…11100001010100
3112221010021110210
430301033201110
5414321011340
633131445420
75210653323
oct1461174124
9487107423
10214235220
11aaa26101
125b8b6870
13354cc804
142064a0ba
1513c1c180
hexcc4f854

214235220 has 48 divisors (see below), whose sum is σ = 603203328. Its totient is φ = 56810880.

The previous prime is 214235213. The next prime is 214235221. The reversal of 214235220 is 22532412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214235221) 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 15 ways as a sum of consecutive naturals, for example, 997 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (12566736).

Almost surely, 2214235220 is an apocalyptic number.

214235220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214235220 is an abundant number, since it is smaller than the sum of its proper divisors (388968108).

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

214235220 is a wasteful number, since it uses less digits than its factorization.

214235220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19920 (or 19918 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 214235220 is about 14636.7762844145. The cubic root of 214235220 is about 598.3614739047.

Adding to 214235220 its reverse (22532412), we get a palindrome (236767632).

The spelling of 214235220 in words is "two hundred fourteen million, two hundred thirty-five thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 181 362 543 724 905 1086 1810 2172 2715 3620 5430 10860 19727 39454 59181 78908 98635 118362 197270 236724 295905 394540 591810 1183620 3570587 7141174 10711761 14282348 17852935 21423522 35705870 42847044 53558805 71411740 107117610 214235220