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10212128 = 25319129
BaseRepresentation
bin100110111101…
…001100100000
3201012211101222
4212331030200
510103242003
61002514212
7152541653
oct46751440
921184358
1010212128
115845583
123505968
1321672a4
1414db89a
15d6ac38
hex9bd320

10212128 has 12 divisors (see below), whose sum is σ = 20105190. Its totient is φ = 5106048.

The previous prime is 10212119. The next prime is 10212131. The reversal of 10212128 is 82121201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10061584 + 150544 = 3172^2 + 388^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159533 + ... + 159596.

Almost surely, 210212128 is an apocalyptic number.

It is an amenable number.

10212128 is a deficient number, since it is larger than the sum of its proper divisors (9893062).

10212128 is an equidigital number, since it uses as much as digits as its factorization.

10212128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319139 (or 319131 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 10212128 is about 3195.6420325187. The cubic root of 10212128 is about 216.9562088222.

Adding to 10212128 its reverse (82121201), we get a palindrome (92333329).

The spelling of 10212128 in words is "ten million, two hundred twelve thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 32 319129 638258 1276516 2553032 5106064 10212128