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214534420 = 22510726721
BaseRepresentation
bin11001100100110…
…00100100010100
3112221200110220021
430302120210110
5414410100140
633142114524
75213340532
oct1462304424
9487613807
10214534420
1110010a981
125ba1ba44
13355a5a59
14206c7152
1513c7ab4a
hexcc98914

214534420 has 12 divisors (see below), whose sum is σ = 450522324. Its totient is φ = 85813760.

The previous prime is 214534393. The next prime is 214534421. The reversal of 214534420 is 24435412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 72114064 = 11934^2 + 8492^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214534421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5363341 + ... + 5363380.

It is an arithmetic number, because the mean of its divisors is an integer number (37543527).

Almost surely, 2214534420 is an apocalyptic number.

214534420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214534420 is an abundant number, since it is smaller than the sum of its proper divisors (235987904).

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

214534420 is a wasteful number, since it uses less digits than its factorization.

214534420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726730 (or 10726728 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 214534420 is about 14646.9935481654. The cubic root of 214534420 is about 598.6399006942.

Adding to 214534420 its reverse (24435412), we get a palindrome (238969832).

The spelling of 214534420 in words is "two hundred fourteen million, five hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 10726721 21453442 42906884 53633605 107267210 214534420