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28104264130 = 252810426413
BaseRepresentation
bin11010001011001001…
…010000100111000010
32200112122010112122111
4122023021100213002
5430024142423010
620524431525534
72013310206055
oct321311204702
980478115574
1028104264130
1110a12140678
1255440898aa
13285b6c53b7
141508770a9c
15ae74ae58a
hex68b2509c2

28104264130 has 8 divisors (see below), whose sum is σ = 50587675452. Its totient is φ = 11241705648.

The previous prime is 28104264109. The next prime is 28104264131. The reversal of 28104264130 is 3146240182.

It can be written as a sum of positive squares in 2 ways, for example, as 26521099609 + 1583164521 = 162853^2 + 39789^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28104264092 and 28104264101.

It is not an unprimeable number, because it can be changed into a prime (28104264131) 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, 1405213197 + ... + 1405213216.

Almost surely, 228104264130 is an apocalyptic number.

28104264130 is a deficient number, since it is larger than the sum of its proper divisors (22483411322).

28104264130 is a wasteful number, since it uses less digits than its factorization.

28104264130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810426420.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 28104264130 in words is "twenty-eight billion, one hundred four million, two hundred sixty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 2810426413 5620852826 14052132065 28104264130