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105130853 = 531983601
BaseRepresentation
bin1100100010000…
…10101101100101
321022211012102022
412101002231211
5203403141403
614233152525
72414411642
oct621025545
9238735368
10105130853
1154386403
122b25b745
1318a1c009
14dd68dc9
159369d38
hex6442b65

105130853 has 4 divisors (see below), whose sum is σ = 107114508. Its totient is φ = 103147200.

The previous prime is 105130841. The next prime is 105130859. The reversal of 105130853 is 358031501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44649124 + 60481729 = 6682^2 + 7777^2 .

It is a cyclic number.

It is not a de Polignac number, because 105130853 - 214 = 105114469 is a prime.

It is a super-2 number, since 2×1051308532 = 22104992505015218, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105130859) 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, 991748 + ... + 991853.

It is an arithmetic number, because the mean of its divisors is an integer number (26778627).

Almost surely, 2105130853 is an apocalyptic number.

It is an amenable number.

105130853 is a deficient number, since it is larger than the sum of its proper divisors (1983655).

105130853 is an equidigital number, since it uses as much as digits as its factorization.

105130853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983654.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 105130853 is about 10253.3337505418. Note that the first 3 decimals coincide. The cubic root of 105130853 is about 471.9652926816.

The spelling of 105130853 in words is "one hundred five million, one hundred thirty thousand, eight hundred fifty-three".

Divisors: 1 53 1983601 105130853