Search a number
-
+
10087212 = 223840601
BaseRepresentation
bin100110011110…
…101100101100
3200222111001110
4212132230230
510040242322
61000112020
7151511532
oct46365454
920874043
1010087212
11576a743
123465610
132122485
1414a8152
15d43c0c
hex99eb2c

10087212 has 12 divisors (see below), whose sum is σ = 23536856. Its totient is φ = 3362400.

The previous prime is 10087201. The next prime is 10087219. The reversal of 10087212 is 21278001.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (10087219) 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 3 ways as a sum of consecutive naturals, for example, 420289 + ... + 420312.

Almost surely, 210087212 is an apocalyptic number.

10087212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10087212 is an abundant number, since it is smaller than the sum of its proper divisors (13449644).

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

10087212 is a wasteful number, since it uses less digits than its factorization.

10087212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840608 (or 840606 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 10087212 is about 3176.0371534351. The cubic root of 10087212 is about 216.0679655805.

The spelling of 10087212 in words is "ten million, eighty-seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 840601 1681202 2521803 3362404 5043606 10087212