Search a number
-
+
82016511 = 357747381
BaseRepresentation
bin1001110001101…
…11100011111111
312201022212111120
410320313203333
5131444012021
612045522023
72014062123
oct470674377
9181285446
1082016511
1142329245
1223573313
1313cb81a5
14ac6d583
1573012c6
hex4e378ff

82016511 has 8 divisors (see below), whose sum is σ = 109547184. Its totient is φ = 54581760.

The previous prime is 82016503. The next prime is 82016527. The reversal of 82016511 is 11561028.

82016511 = T218 + T219 + ... + T794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82016511 - 23 = 82016503 is a prime.

It is a super-2 number, since 2×820165112 = 13453416153226242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82016581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21960 + ... + 25421.

It is an arithmetic number, because the mean of its divisors is an integer number (13693398).

Almost surely, 282016511 is an apocalyptic number.

82016511 is a deficient number, since it is larger than the sum of its proper divisors (27530673).

82016511 is a wasteful number, since it uses less digits than its factorization.

82016511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47961.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 82016511 is about 9056.2967597137. The cubic root of 82016511 is about 434.4773058614.

Adding to 82016511 its reverse (11561028), we get a palindrome (93577539).

The spelling of 82016511 in words is "eighty-two million, sixteen thousand, five hundred eleven".

Divisors: 1 3 577 1731 47381 142143 27338837 82016511