Search a number
-
+
10390806 = 2321394153
BaseRepresentation
bin100111101000…
…110100010110
3201112220111200
4213220310112
510130001211
61010413330
7154214616
oct47506426
921486450
1010390806
115957848
123591246
1321ca70a
141546a46
15da3b56
hex9e8d16

10390806 has 24 divisors (see below), whose sum is σ = 22680840. Its totient is φ = 3437856.

The previous prime is 10390799. The next prime is 10390811. The reversal of 10390806 is 60809301.

10390806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 10390806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426 + ... + 4578.

It is an arithmetic number, because the mean of its divisors is an integer number (945035).

Almost surely, 210390806 is an apocalyptic number.

10390806 is an abundant number, since it is smaller than the sum of its proper divisors (12290034).

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

10390806 is a wasteful number, since it uses less digits than its factorization.

10390806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10390806 is about 3223.4773149504. The cubic root of 10390806 is about 218.2142354294.

It can be divided in two parts, 103 and 90806, that added together give a palindrome (90909).

The spelling of 10390806 in words is "ten million, three hundred ninety thousand, eight hundred six".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 4153 8306 12459 24918 37377 74754 577267 1154534 1731801 3463602 5195403 10390806