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203996212 = 22721040797
BaseRepresentation
bin11000010100010…
…11110000110100
3112012212002012021
430022023300310
5404210334322
632124202524
75024640100
oct1412136064
9465762167
10203996212
11a5172412
1258399444
1333356224
141d142900
1512d984c7
hexc28bc34

203996212 has 18 divisors (see below), whose sum is σ = 415278402. Its totient is φ = 87426864.

The previous prime is 203996189. The next prime is 203996227. The reversal of 203996212 is 212699302.

It can be written as a sum of positive squares in only one way, i.e., 160883856 + 43112356 = 12684^2 + 6566^2 .

It is a super-2 number, since 2×2039962122 = 83228909020697888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 520203 + ... + 520594.

Almost surely, 2203996212 is an apocalyptic number.

It is an amenable number.

203996212 is an abundant number, since it is smaller than the sum of its proper divisors (211282190).

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

203996212 is a wasteful number, since it uses less digits than its factorization.

203996212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040815 (or 1040806 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 203996212 is about 14282.7242499462. The cubic root of 203996212 is about 588.6728880274.

The spelling of 203996212 in words is "two hundred three million, nine hundred ninety-six thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 196 1040797 2081594 4163188 7285579 14571158 29142316 50999053 101998106 203996212