Search a number
-
+
28484462213 = 94333019661
BaseRepresentation
bin11010100001110011…
…100110011010000101
32201112010112121100222
4122201303212122011
5431314010242323
621030252514125
72025604635224
oct324163463205
981463477328
1028484462213
1111097811069
12562b47b945
1328bc3c278c
14154305ccbb
15b1aa609c8
hex6a1ce6685

28484462213 has 4 divisors (see below), whose sum is σ = 28487491308. Its totient is φ = 28481433120.

The previous prime is 28484462203. The next prime is 28484462243. The reversal of 28484462213 is 31226448482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9501960484 + 18982501729 = 97478^2 + 137777^2 .

It is a cyclic number.

It is not a de Polignac number, because 28484462213 - 24 = 28484462197 is a prime.

It is a super-3 number, since 3×284844622133 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484462203) 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, 1500398 + ... + 1519263.

It is an arithmetic number, because the mean of its divisors is an integer number (7121872827).

Almost surely, 228484462213 is an apocalyptic number.

It is an amenable number.

28484462213 is a deficient number, since it is larger than the sum of its proper divisors (3029095).

28484462213 is an equidigital number, since it uses as much as digits as its factorization.

28484462213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029094.

The product of its digits is 589824, while the sum is 44.

The spelling of 28484462213 in words is "twenty-eight billion, four hundred eighty-four million, four hundred sixty-two thousand, two hundred thirteen".

Divisors: 1 9433 3019661 28484462213