Search a number
-
+
10168405 = 513156437
BaseRepresentation
bin100110110010…
…100001010101
3201010121102121
4212302201111
510100342110
61001535541
7152300332
oct46624125
921117377
1010168405
115815745
1234a45b1
132150410
1414c9989
15d5ccda
hex9b2855

10168405 has 8 divisors (see below), whose sum is σ = 13140792. Its totient is φ = 7508928.

The previous prime is 10168391. The next prime is 10168423. The reversal of 10168405 is 50486101.

It can be written as a sum of positive squares in 4 ways, for example, as 75076 + 10093329 = 274^2 + 3177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10168405 - 25 = 10168373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10168405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 78154 + ... + 78283.

It is an arithmetic number, because the mean of its divisors is an integer number (1642599).

Almost surely, 210168405 is an apocalyptic number.

It is an amenable number.

10168405 is a deficient number, since it is larger than the sum of its proper divisors (2972387).

10168405 is a wasteful number, since it uses less digits than its factorization.

10168405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156455.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 10168405 is about 3188.7936590504. The cubic root of 10168405 is about 216.6461348065.

The spelling of 10168405 in words is "ten million, one hundred sixty-eight thousand, four hundred five".

Divisors: 1 5 13 65 156437 782185 2033681 10168405