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983143141 = 4123979101
BaseRepresentation
bin111010100110011…
…001001011100101
32112111221211211221
4322212121023211
54003141040031
6241320100341
733235402351
oct7246311345
92474854757
10983143141
11464a5aaa2
122353046b1
131288b7606
1494800461
155b4a1a11
hex3a9992e5

983143141 has 4 divisors (see below), whose sum is σ = 1007122284. Its totient is φ = 959164000.

The previous prime is 983143127. The next prime is 983143153. The reversal of 983143141 is 141341389.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122014116 + 861129025 = 11046^2 + 29345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-983143141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 983143097 and 983143106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983143241) 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, 11989510 + ... + 11989591.

It is an arithmetic number, because the mean of its divisors is an integer number (251780571).

Almost surely, 2983143141 is an apocalyptic number.

It is an amenable number.

983143141 is a deficient number, since it is larger than the sum of its proper divisors (23979143).

983143141 is a wasteful number, since it uses less digits than its factorization.

983143141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979142.

The product of its digits is 10368, while the sum is 34.

The square root of 983143141 is about 31355.1134745196. The cubic root of 983143141 is about 994.3491753276.

The spelling of 983143141 in words is "nine hundred eighty-three million, one hundred forty-three thousand, one hundred forty-one".

Divisors: 1 41 23979101 983143141