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10212201 = 321816269
BaseRepresentation
bin100110111101…
…001101101001
3201012211111200
4212331031221
510103242301
61002514413
7152542116
oct46751551
921184450
1010212201
11584563a
123505a09
13216732c
1414db90d
15d6ac86
hex9bd369

10212201 has 12 divisors (see below), whose sum is σ = 14834820. Its totient is φ = 6769440.

The previous prime is 10212179. The next prime is 10212203. The reversal of 10212201 is 10221201.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 9000000 = 1101^2 + 3000^2 .

It is not a de Polignac number, because 10212201 - 210 = 10211177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10212203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1506 + ... + 4763.

It is an arithmetic number, because the mean of its divisors is an integer number (1236235).

Almost surely, 210212201 is an apocalyptic number.

It is an amenable number.

10212201 is a deficient number, since it is larger than the sum of its proper divisors (4622619).

10212201 is a wasteful number, since it uses less digits than its factorization.

10212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10212201 is about 3195.6534543032. The cubic root of 10212201 is about 216.9567257815.

Adding to 10212201 its reverse (10221201), we get a palindrome (20433402).

The spelling of 10212201 in words is "ten million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 9 181 543 1629 6269 18807 56421 1134689 3404067 10212201