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1020044143 = 9718158099
BaseRepresentation
bin111100110011001…
…010001101101111
32122002101121111201
4330303022031233
54042112403033
6245115030331
734164142426
oct7463121557
92562347451
101020044143
11483874298
1224573b3a7
13133437721
14996882bd
155e84047d
hex3ccca36f

1020044143 has 8 divisors (see below), whose sum is σ = 1036271600. Its totient is φ = 1003933440.

The previous prime is 1020044131. The next prime is 1020044159. The reversal of 1020044143 is 3414400201.

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 1020044143 - 217 = 1019913071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020044143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020644143) 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, 11493 + ... + 46606.

It is an arithmetic number, because the mean of its divisors is an integer number (129533950).

Almost surely, 21020044143 is an apocalyptic number.

1020044143 is a deficient number, since it is larger than the sum of its proper divisors (16227457).

1020044143 is an equidigital number, since it uses as much as digits as its factorization.

1020044143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58377.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1020044143 is about 31938.1299233377. The cubic root of 1020044143 is about 1006.6372307056.

Adding to 1020044143 its reverse (3414400201), we get a palindrome (4434444344).

The spelling of 1020044143 in words is "one billion, twenty million, forty-four thousand, one hundred forty-three".

Divisors: 1 97 181 17557 58099 5635603 10515919 1020044143