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105051143 = 1723416553
BaseRepresentation
bin1100100001011…
…11010000000111
321022200011002002
412100233100013
5203343114033
614231335515
72413630361
oct620572007
9238604062
10105051143
115433152a
122b22159b
13189c1952
14dd47d31
1593513e8
hex642f407

105051143 has 16 divisors (see below), whose sum is σ = 118915776. Its totient is φ = 92252160.

The previous prime is 105051113. The next prime is 105051151. The reversal of 105051143 is 341150501.

It is a cyclic number.

It is not a de Polignac number, because 105051143 - 28 = 105050887 is a prime.

It is a super-2 number, since 2×1050511432 = 22071485291212898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105051113) 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, 12755 + ... + 19307.

It is an arithmetic number, because the mean of its divisors is an integer number (7432236).

Almost surely, 2105051143 is an apocalyptic number.

105051143 is a deficient number, since it is larger than the sum of its proper divisors (13864633).

105051143 is a wasteful number, since it uses less digits than its factorization.

105051143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105051143 is about 10249.4459850277. The cubic root of 105051143 is about 471.8459814794.

The spelling of 105051143 in words is "one hundred five million, fifty-one thousand, one hundred forty-three".

Divisors: 1 17 23 41 391 697 943 6553 16031 111401 150719 268673 2562223 4567441 6179479 105051143