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28927401048 = 23347131925819
BaseRepresentation
bin11010111100001101…
…010001110001011000
32202200000000020020000
4122330031101301120
5433220403313143
621142234333000
72042563565130
oct327415216130
982600006200
1028927401048
11112a4844617
12573388a160
1329600b9470
141585bddac0
15b448a6bd3
hex6bc351c58

28927401048 has 320 divisors, whose sum is σ = 104973792000. Its totient is φ = 7227387648.

The previous prime is 28927401037. The next prime is 28927401049. The reversal of 28927401048 is 84010472982.

It is a junction number, because it is equal to n+sod(n) for n = 28927400994 and 28927401012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28927401049) 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 79 ways as a sum of consecutive naturals, for example, 1107483 + ... + 1133301.

It is an arithmetic number, because the mean of its divisors is an integer number (328043100).

Almost surely, 228927401048 is an apocalyptic number.

28927401048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28927401048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52486896000).

28927401048 is an abundant number, since it is smaller than the sum of its proper divisors (76046390952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28927401048 is a wasteful number, since it uses less digits than its factorization.

28927401048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876 (or 25863 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 28927401048 in words is "twenty-eight billion, nine hundred twenty-seven million, four hundred one thousand, forty-eight".