Search a number
-
+
10020812 = 2231211383
BaseRepresentation
bin100110001110…
…011111001100
3200212002222012
4212032133030
510031131222
6554440352
7151114124
oct46163714
920762865
1010020812
11572486a
1234330b8
1320cb199
14148bc84
15d2e1e2
hex98e7cc

10020812 has 24 divisors (see below), whose sum is σ = 18235392. Its totient is φ = 4813200.

The previous prime is 10020797. The next prime is 10020817. The reversal of 10020812 is 21802001.

It is not an unprimeable number, because it can be changed into a prime (10020817) 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 7 ways as a sum of consecutive naturals, for example, 25973 + ... + 26355.

It is an arithmetic number, because the mean of its divisors is an integer number (759808).

Almost surely, 210020812 is an apocalyptic number.

It is an amenable number.

10020812 is a deficient number, since it is larger than the sum of its proper divisors (8214580).

10020812 is a wasteful number, since it uses less digits than its factorization.

10020812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 10020812 is about 3165.5666159473. The cubic root of 10020812 is about 215.5928257532.

Adding to 10020812 its reverse (21802001), we get a palindrome (31822813).

The spelling of 10020812 in words is "ten million, twenty thousand, eight hundred twelve".

Divisors: 1 2 4 31 62 124 211 383 422 766 844 1532 6541 11873 13082 23746 26164 47492 80813 161626 323252 2505203 5010406 10020812