Search a number
-
+
10205445 = 352329581
BaseRepresentation
bin100110111011…
…100100000101
3201012111020110
4212323210011
510103033240
61002423233
7152513325
oct46734405
921174213
1010205445
115840558
123501b19
132164233
1414d9285
15d68c80
hex9bb905

10205445 has 16 divisors (see below), whose sum is σ = 17039232. Its totient is φ = 5206080.

The previous prime is 10205441. The next prime is 10205449. The reversal of 10205445 is 54450201.

10205445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10205441) and next prime (10205449).

It is not a de Polignac number, because 10205445 - 22 = 10205441 is a prime.

It is a super-2 number, since 2×102054452 = 208302215296050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10205441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14446 + ... + 15135.

It is an arithmetic number, because the mean of its divisors is an integer number (1064952).

Almost surely, 210205445 is an apocalyptic number.

10205445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10205445 is a deficient number, since it is larger than the sum of its proper divisors (6833787).

10205445 is a wasteful number, since it uses less digits than its factorization.

10205445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29612.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 10205445 is about 3194.5962186167. The cubic root of 10205445 is about 216.9088718146.

Adding to 10205445 its reverse (54450201), we get a palindrome (64655646).

The spelling of 10205445 in words is "ten million, two hundred five thousand, four hundred forty-five".

Divisors: 1 3 5 15 23 69 115 345 29581 88743 147905 443715 680363 2041089 3401815 10205445