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10687212 = 22322831049
BaseRepresentation
bin101000110001…
…001011101100
3202002222002200
4220301023230
510213442322
61021021500
7156561024
oct50611354
922088080
1010687212
11603a508
1236b4890
1322a25c3
1415c2a84
15e118ac
hexa312ec

10687212 has 36 divisors (see below), whose sum is σ = 27136200. Its totient is φ = 3546432.

The previous prime is 10687211. The next prime is 10687217. The reversal of 10687212 is 21278601.

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

It is a super-2 number, since 2×106872122 = 228433000665888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10687211) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 9664 + ... + 10712.

Almost surely, 210687212 is an apocalyptic number.

10687212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10687212 is an abundant number, since it is smaller than the sum of its proper divisors (16448988).

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

10687212 is a wasteful number, since it uses less digits than its factorization.

10687212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 10687212 is about 3269.1301595379. The cubic root of 10687212 is about 220.2697242741.

The spelling of 10687212 in words is "ten million, six hundred eighty-seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 283 566 849 1049 1132 1698 2098 2547 3147 3396 4196 5094 6294 9441 10188 12588 18882 37764 296867 593734 890601 1187468 1781202 2671803 3562404 5343606 10687212