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3550142143 = 9373788839
BaseRepresentation
bin1101001110011010…
…1101111010111111
3100011102012220111001
43103212231322333
524232314022033
61344135511131
7153655465432
oct32346557277
910142186431
103550142143
111561a65379
12830b284a7
13447674632
142596d1819
1515ba13e7d
hexd39adebf

3550142143 has 4 divisors (see below), whose sum is σ = 3553931920. Its totient is φ = 3546352368.

The previous prime is 3550142129. The next prime is 3550142171. The reversal of 3550142143 is 3412410553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412410553 = 5957837467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3550142143 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 (3550142173) 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, 1893483 + ... + 1895356.

It is an arithmetic number, because the mean of its divisors is an integer number (888482980).

Almost surely, 23550142143 is an apocalyptic number.

3550142143 is a deficient number, since it is larger than the sum of its proper divisors (3789777).

3550142143 is an equidigital number, since it uses as much as digits as its factorization.

3550142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789776.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 3550142143 is about 59583.0692646829. The cubic root of 3550142143 is about 1525.5106619824.

Adding to 3550142143 its reverse (3412410553), we get a palindrome (6962552696).

The spelling of 3550142143 in words is "three billion, five hundred fifty million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 937 3788839 3550142143