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38983028489 = 113344982553
BaseRepresentation
bin100100010011100100…
…011100111100001001
310201121210110000211222
4210103210130330021
51114314123402424
625524125331425
72550015163166
oct442344347411
9121553400758
1038983028489
11155949a3319
12767b406b75
1338a3482582
141c5b4c306d
1510325a1e5e
hex91391cf09

38983028489 has 4 divisors (see below), whose sum is σ = 39328011156. Its totient is φ = 38638045824.

The previous prime is 38983028429. The next prime is 38983028507. The reversal of 38983028489 is 98482038983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98482038983 = 221399444817.

It can be written as a sum of positive squares in 2 ways, for example, as 5786188489 + 33196840000 = 76067^2 + 182200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38983028489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38983028429) 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, 172491164 + ... + 172491389.

It is an arithmetic number, because the mean of its divisors is an integer number (9832002789).

Almost surely, 238983028489 is an apocalyptic number.

It is an amenable number.

38983028489 is a deficient number, since it is larger than the sum of its proper divisors (344982667).

38983028489 is a wasteful number, since it uses less digits than its factorization.

38983028489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344982666.

The product of its (nonzero) digits is 23887872, while the sum is 62.

The spelling of 38983028489 in words is "thirty-eight billion, nine hundred eighty-three million, twenty-eight thousand, four hundred eighty-nine".

Divisors: 1 113 344982553 38983028489