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2102212 = 22775079
BaseRepresentation
bin1000000001001111000100
310221210200201
420001033010
51014232322
6113020244
723603620
oct10011704
93853621
102102212
111206472
12854684
13587b18
143ca180
152b7d27
hex2013c4

2102212 has 12 divisors (see below), whose sum is σ = 4204480. Its totient is φ = 900936.

The previous prime is 2102207. The next prime is 2102213. The reversal of 2102212 is 2122012.

2102212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2102213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37512 + ... + 37567.

22102212 is an apocalyptic number.

It is an amenable number.

2102212 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.

2102212 is a wasteful number, since it uses less digits than its factorization.

2102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75090 (or 75088 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2102212 is about 1449.9006862541. The cubic root of 2102212 is about 128.1028632785.

Adding to 2102212 its reverse (2122012), we get a palindrome (4224224).

The spelling of 2102212 in words is "two million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 75079 150158 300316 525553 1051106 2102212