Base | Representation |
---|---|
bin | 1110000000111… |
… | …0101011011101 |
3 | 11002121100112011 |
4 | 3200032223131 |
5 | 110021433011 |
6 | 5455511221 |
7 | 1312424242 |
oct | 340165335 |
9 | 132540464 |
10 | 58780381 |
11 | 301a8630 |
12 | 17828511 |
13 | c240aba |
14 | 7b415c9 |
15 | 5261621 |
hex | 380eadd |
58780381 has 4 divisors (see below), whose sum is σ = 64124064. Its totient is φ = 53436700.
The previous prime is 58780367. The next prime is 58780391. The reversal of 58780381 is 18308785.
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 a cyclic number.
It is not a de Polignac number, because 58780381 - 29 = 58779869 is a prime.
It is a super-2 number, since 2×587803812 = 6910266381010322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (58780301) 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, 2671825 + ... + 2671846.
It is an arithmetic number, because the mean of its divisors is an integer number (16031016).
Almost surely, 258780381 is an apocalyptic number.
It is an amenable number.
58780381 is a deficient number, since it is larger than the sum of its proper divisors (5343683).
58780381 is a wasteful number, since it uses less digits than its factorization.
58780381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5343682.
The product of its (nonzero) digits is 53760, while the sum is 40.
The square root of 58780381 is about 7666.8364401492. The cubic root of 58780381 is about 388.8160037225.
The spelling of 58780381 in words is "fifty-eight million, seven hundred eighty thousand, three hundred eighty-one".
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