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105153215 = 5731032797
BaseRepresentation
bin1100100010010…
…00001010111111
321022212100002112
412101020022333
5203404400330
614233444235
72414534066
oct621101277
9238770075
10105153215
11543a1192
122b27067b
1318a2924b
14dd731dd
159371795
hex64482bf

105153215 has 16 divisors (see below), whose sum is σ = 129200448. Its totient is φ = 82135296.

The previous prime is 105153193. The next prime is 105153227. The reversal of 105153215 is 512351501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105153215 - 212 = 105149119 is a prime.

It is a super-2 number, since 2×1051532152 = 22114397249672450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36197 + ... + 38993.

It is an arithmetic number, because the mean of its divisors is an integer number (8075028).

Almost surely, 2105153215 is an apocalyptic number.

105153215 is a deficient number, since it is larger than the sum of its proper divisors (24047233).

105153215 is a wasteful number, since it uses less digits than its factorization.

105153215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 105153215 is about 10254.4241671583. The cubic root of 105153215 is about 471.9987536475.

The spelling of 105153215 in words is "one hundred five million, one hundred fifty-three thousand, two hundred fifteen".

Divisors: 1 5 73 103 365 515 2797 7519 13985 37595 204181 288091 1020905 1440455 21030643 105153215