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214242520 = 2355356063
BaseRepresentation
bin11001100010100…
…01010011011000
3112221010122111011
430301101103120
5414321230040
633131543304
75211013522
oct1461212330
9487118434
10214242520
11aaa30638
125b8bab34
1335502c2b
142064ca12
1513c1e3ea
hexcc514d8

214242520 has 16 divisors (see below), whose sum is σ = 482045760. Its totient is φ = 85696992.

The previous prime is 214242487. The next prime is 214242521. The reversal of 214242520 is 25242412.

It is a super-3 number, since 3×2142425203 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214242491 and 214242500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214242521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677992 + ... + 2678071.

It is an arithmetic number, because the mean of its divisors is an integer number (30127860).

Almost surely, 2214242520 is an apocalyptic number.

214242520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214242520 is an abundant number, since it is smaller than the sum of its proper divisors (267803240).

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

214242520 is a wasteful number, since it uses less digits than its factorization.

214242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356074 (or 5356070 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 214242520 is about 14637.0256541416. The cubic root of 214242520 is about 598.3682701560.

Adding to 214242520 its reverse (25242412), we get a palindrome (239484932).

The spelling of 214242520 in words is "two hundred fourteen million, two hundred forty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5356063 10712126 21424252 26780315 42848504 53560630 107121260 214242520