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202661896 = 23171490161
BaseRepresentation
bin11000001010001…
…10000000001000
3112010100021212011
430011012000020
5403340140041
632035425304
75010412003
oct1405060010
9463307764
10202661896
11a4440978
1257a55234
1332ca9aa8
141ccb653a
1512bd2e81
hexc146008

202661896 has 16 divisors (see below), whose sum is σ = 402343740. Its totient is φ = 95370240.

The previous prime is 202661869. The next prime is 202661897. The reversal of 202661896 is 698166202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 202037796 + 624100 = 14214^2 + 790^2 .

It is not an unprimeable number, because it can be changed into a prime (202661897) 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, 744945 + ... + 745216.

Almost surely, 2202661896 is an apocalyptic number.

It is an amenable number.

202661896 is a deficient number, since it is larger than the sum of its proper divisors (199681844).

202661896 is a wasteful number, since it uses less digits than its factorization.

202661896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490184 (or 1490180 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 202661896 is about 14235.9367798540. The cubic root of 202661896 is about 587.3865986646.

The spelling of 202661896 in words is "two hundred two million, six hundred sixty-one thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 17 34 68 136 1490161 2980322 5960644 11921288 25332737 50665474 101330948 202661896