Search a number
-
+
82038637 = 194317823
BaseRepresentation
bin1001110001111…
…00111101101101
312201100222212001
410320330331231
5132000214022
612050212301
72014213462
oct470747555
9181328761
1082038637
114234392a
1223584091
1313cc5295
14ac77669
157307b27
hex4e3cf6d

82038637 has 4 divisors (see below), whose sum is σ = 86356480. Its totient is φ = 77720796.

The previous prime is 82038629. The next prime is 82038643. The reversal of 82038637 is 73683028.

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 82038637 - 23 = 82038629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82038596 and 82038605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82038667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158893 + ... + 2158930.

It is an arithmetic number, because the mean of its divisors is an integer number (21589120).

Almost surely, 282038637 is an apocalyptic number.

It is an amenable number.

82038637 is a deficient number, since it is larger than the sum of its proper divisors (4317843).

82038637 is a wasteful number, since it uses less digits than its factorization.

82038637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317842.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 82038637 is about 9057.5182583310. The cubic root of 82038637 is about 434.5163727127.

The spelling of 82038637 in words is "eighty-two million, thirty-eight thousand, six hundred thirty-seven".

Divisors: 1 19 4317823 82038637