Base | Representation |
---|---|
bin | 1001010010110… |
… | …0111110100101 |
3 | 2201100110121210 |
4 | 2110230332211 |
5 | 34434402131 |
6 | 3511302033 |
7 | 652223544 |
oct | 224547645 |
9 | 81313553 |
10 | 38981541 |
11 | 20005455 |
12 | 1107a919 |
13 | 80cb101 |
14 | 526a15b |
15 | 3650146 |
hex | 252cfa5 |
38981541 has 4 divisors (see below), whose sum is σ = 51975392. Its totient is φ = 25987692.
The previous prime is 38981519. The next prime is 38981563. The reversal of 38981541 is 14518983.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is an interprime number because it is at equal distance from previous prime (38981519) and next prime (38981563).
It is not a de Polignac number, because 38981541 - 27 = 38981413 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 38981541.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38981441) 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, 6496921 + ... + 6496926.
It is an arithmetic number, because the mean of its divisors is an integer number (12993848).
Almost surely, 238981541 is an apocalyptic number.
It is an amenable number.
38981541 is a deficient number, since it is larger than the sum of its proper divisors (12993851).
38981541 is a wasteful number, since it uses less digits than its factorization.
38981541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12993850.
The product of its digits is 34560, while the sum is 39.
The square root of 38981541 is about 6243.5199206858. The cubic root of 38981541 is about 339.0676329760.
The spelling of 38981541 in words is "thirty-eight million, nine hundred eighty-one thousand, five hundred forty-one".
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