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205002212 = 22615411553
BaseRepresentation
bin11000011100000…
…01010111100100
3112021202012011112
430032001113210
5404440032322
632201524152
75036330042
oct1416012744
9467665145
10205002212
11a579a218
12587a3658
13336190ac
141d325392
1512ee65e2
hexc3815e4

205002212 has 24 divisors (see below), whose sum is σ = 365544312. Its totient is φ = 100569600.

The previous prime is 205002211. The next prime is 205002221. The reversal of 205002212 is 212200502.

It can be written as a sum of positive squares in 4 ways, for example, as 7431076 + 197571136 = 2726^2 + 14056^2 .

It is not an unprimeable number, because it can be changed into a prime (205002211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131228 + ... + 132780.

It is an arithmetic number, because the mean of its divisors is an integer number (15231013).

Almost surely, 2205002212 is an apocalyptic number.

It is an amenable number.

205002212 is a deficient number, since it is larger than the sum of its proper divisors (160542100).

205002212 is a wasteful number, since it uses less digits than its factorization.

205002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 205002212 is about 14317.8983094587. The cubic root of 205002212 is about 589.6389747646.

Adding to 205002212 its reverse (212200502), we get a palindrome (417202714).

The spelling of 205002212 in words is "two hundred five million, two thousand, two hundred twelve".

Divisors: 1 2 4 61 122 244 541 1082 1553 2164 3106 6212 33001 66002 94733 132004 189466 378932 840173 1680346 3360692 51250553 102501106 205002212