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10212012 = 2232331857
BaseRepresentation
bin100110111101…
…001010101100
3201012211020200
4212331022230
510103241022
61002513500
7152541426
oct46751254
921184220
1010212012
115845488
123505890
132167215
1414db816
15d6abac
hex9bd2ac

10212012 has 36 divisors (see below), whose sum is σ = 25921896. Its totient is φ = 3389760.

The previous prime is 10212011. The next prime is 10212029. The reversal of 10212012 is 21021201.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 10211985 and 10212003.

It is not an unprimeable number, because it can be changed into a prime (10212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11488 + ... + 12344.

Almost surely, 210212012 is an apocalyptic number.

10212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10212012 is an abundant number, since it is smaller than the sum of its proper divisors (15709884).

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

10212012 is a wasteful number, since it uses less digits than its factorization.

10212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1193 counting only the distinct ones).

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

The square root of 10212012 is about 3195.6238827497. The cubic root of 10212012 is about 216.9553873474.

Adding to 10212012 its reverse (21021201), we get a palindrome (31233213).

It can be divided in two parts, 1021201 and 2, that multiplied together give a palindrome (2042402).

The spelling of 10212012 in words is "ten million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 331 662 857 993 1324 1714 1986 2571 2979 3428 3972 5142 5958 7713 10284 11916 15426 30852 283667 567334 851001 1134668 1702002 2553003 3404004 5106006 10212012