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212020010 = 2521202001
BaseRepresentation
bin11001010001100…
…10101100101010
3112202221201202222
430220302230222
5413234120020
633012154042
75153066066
oct1450625452
9482851688
10212020010
11a9752854
125b008922
1334c05437
1420230aa6
1513930b25
hexca32b2a

212020010 has 8 divisors (see below), whose sum is σ = 381636036. Its totient is φ = 84808000.

The previous prime is 212020009. The next prime is 212020013. The reversal of 212020010 is 10020212.

It can be written as a sum of positive squares in 2 ways, for example, as 201044041 + 10975969 = 14179^2 + 3313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212020010.

It is not an unprimeable number, because it can be changed into a prime (212020013) 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, 10600991 + ... + 10601010.

Almost surely, 2212020010 is an apocalyptic number.

212020010 is a deficient number, since it is larger than the sum of its proper divisors (169616026).

212020010 is a wasteful number, since it uses less digits than its factorization.

212020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202008.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 212020010 is about 14560.9069085686. The cubic root of 212020010 is about 596.2919552890.

Adding to 212020010 its reverse (10020212), we get a palindrome (222040222).

The spelling of 212020010 in words is "two hundred twelve million, twenty thousand, ten".

Divisors: 1 2 5 10 21202001 42404002 106010005 212020010