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105200045 = 523914783
BaseRepresentation
bin1100100010100…
…11100110101101
321022221201022222
412101103212231
5203412400140
614234445125
72415120446
oct621234655
9238851288
10105200045
1154423395
122b2937a5
1318a44662
14dd862cd
1593805b5
hex64539ad

105200045 has 8 divisors (see below), whose sum is σ = 131728896. Its totient is φ = 80500816.

The previous prime is 105200041. The next prime is 105200057. The reversal of 105200045 is 540002501.

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 105200045 - 22 = 105200041 is a prime.

It is a super-2 number, since 2×1052000452 = 22134098936004050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105199996 and 105200032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105200041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457277 + ... + 457506.

It is an arithmetic number, because the mean of its divisors is an integer number (16466112).

Almost surely, 2105200045 is an apocalyptic number.

It is an amenable number.

105200045 is a deficient number, since it is larger than the sum of its proper divisors (26528851).

105200045 is an equidigital number, since it uses as much as digits as its factorization.

105200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914811.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 105200045 is about 10256.7073176532. The cubic root of 105200045 is about 472.0688114869.

Adding to 105200045 its reverse (540002501), we get a palindrome (645202546).

The spelling of 105200045 in words is "one hundred five million, two hundred thousand, forty-five".

Divisors: 1 5 23 115 914783 4573915 21040009 105200045