Search a number
-
+
210212212 = 2277507579
BaseRepresentation
bin11001000011110…
…01010101110100
3112122112212221111
430201321111310
5412303242322
632505324404
75131526410
oct1441712564
9478485844
10210212212
11a8728601
125a496704
1334721632
141dcbdd40
15136c5177
hexc879574

210212212 has 12 divisors (see below), whose sum is σ = 420424480. Its totient is φ = 90090936.

The previous prime is 210212201. The next prime is 210212227. The reversal of 210212212 is 212212012.

It is a happy number.

210212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

210212212 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 210212192 and 210212201.

It is a congruent number.

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, 3753762 + ... + 3753817.

Almost surely, 2210212212 is an apocalyptic number.

It is an amenable number.

210212212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

210212212 is a wasteful number, since it uses less digits than its factorization.

210212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507590 (or 7507588 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 210212212 is about 14498.6969069637. The cubic root of 210212212 is about 594.5923455807.

Adding to 210212212 its reverse (212212012), we get a palindrome (422424224).

The spelling of 210212212 in words is "two hundred ten million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 7507579 15015158 30030316 52553053 105106106 210212212