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214530020 = 22510726501
BaseRepresentation
bin11001100100101…
…11011111100100
3112221200020212022
430302113133210
5414404430040
633142042312
75213321645
oct1462273744
9487606768
10214530020
11100107641
125ba19398
13355a3a53
14206c56cc
1513c796b5
hexcc977e4

214530020 has 12 divisors (see below), whose sum is σ = 450513084. Its totient is φ = 85812000.

The previous prime is 214530011. The next prime is 214530049. The reversal of 214530020 is 20035412.

It can be written as a sum of positive squares in 2 ways, for example, as 62599744 + 151930276 = 7912^2 + 12326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5363231 + ... + 5363270.

It is an arithmetic number, because the mean of its divisors is an integer number (37542757).

Almost surely, 2214530020 is an apocalyptic number.

214530020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214530020 is an abundant number, since it is smaller than the sum of its proper divisors (235983064).

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

214530020 is a wasteful number, since it uses less digits than its factorization.

214530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10726510 (or 10726508 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 214530020 is about 14646.8433459227. The cubic root of 214530020 is about 598.6358080587.

Adding to 214530020 its reverse (20035412), we get a palindrome (234565432).

The spelling of 214530020 in words is "two hundred fourteen million, five hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 10726501 21453002 42906004 53632505 107265010 214530020