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105105104 = 2413505313
BaseRepresentation
bin1100100001111…
…00011011010000
321022202220002122
412100330123100
5203401330404
614232433412
72414243606
oct620743320
9238686078
10105105104
1154369025
122b248868
1318a10390
14dd5d876
1593623be
hex643c6d0

105105104 has 20 divisors (see below), whose sum is σ = 219306276. Its totient is φ = 48509952.

The previous prime is 105105083. The next prime is 105105107. The reversal of 105105104 is 401501501.

It can be written as a sum of positive squares in 2 ways, for example, as 15840400 + 89264704 = 3980^2 + 9448^2 .

It is a super-2 number, since 2×1051051042 = 22094165773701632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105105107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252449 + ... + 252864.

Almost surely, 2105105104 is an apocalyptic number.

It is an amenable number.

105105104 is an abundant number, since it is smaller than the sum of its proper divisors (114201172).

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

105105104 is a wasteful number, since it uses less digits than its factorization.

105105104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505334 (or 505328 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 105105104 is about 10252.0780332575. The cubic root of 105105104 is about 471.9267577629.

Adding to 105105104 its reverse (401501501), we get a palindrome (506606605).

The spelling of 105105104 in words is "one hundred five million, one hundred five thousand, one hundred four".

Divisors: 1 2 4 8 13 16 26 52 104 208 505313 1010626 2021252 4042504 6569069 8085008 13138138 26276276 52552552 105105104