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1100143 = 11103971
BaseRepresentation
bin100001100100101101111
32001220010001
410030211233
5240201033
635325131
712231262
oct4144557
92056101
101100143
11691610
124507a7
132c6995
14208cd9
1516ae7d
hex10c96f

1100143 has 8 divisors (see below), whose sum is σ = 1213056. Its totient is φ = 989400.

The previous prime is 1100131. The next prime is 1100147. The reversal of 1100143 is 3410011.

It is a happy number.

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 1100143 - 217 = 969071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (151632).

21100143 is an apocalyptic number.

1100143 is a deficient number, since it is larger than the sum of its proper divisors (112913).

1100143 is a wasteful number, since it uses less digits than its factorization.

1100143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1100143 is about 1048.8770185298. The cubic root of 1100143 is about 103.2324845656.

Adding to 1100143 its reverse (3410011), we get a palindrome (4510154).

The spelling of 1100143 in words is "one million, one hundred thousand, one hundred forty-three".

Divisors: 1 11 103 971 1133 10681 100013 1100143