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2828578280 = 235112584417
BaseRepresentation
bin1010100010011000…
…1010110111101000
321022010110122221112
42220212022313220
521243104001110
61144402125452
7130044342623
oct25046126750
97263418845
102828578280
111221727800
1266b350888
13361025078
141cb942dba
151184d2405
hexa898ade8

2828578280 has 48 divisors (see below), whose sum is σ = 6995483460. Its totient is φ = 1028572160.

The previous prime is 2828578271. The next prime is 2828578289. The reversal of 2828578280 is 828758282.

It is an interprime number because it is at equal distance from previous prime (2828578271) and next prime (2828578289).

It can be written as a sum of positive squares in 2 ways, for example, as 2675165284 + 153412996 = 51722^2 + 12386^2 .

It is not an unprimeable number, because it can be changed into a prime (2828578289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287369 + ... + 297048.

Almost surely, 22828578280 is an apocalyptic number.

2828578280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2828578280 is an abundant number, since it is smaller than the sum of its proper divisors (4166905180).

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

2828578280 is a wasteful number, since it uses less digits than its factorization.

2828578280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584450 (or 584435 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 50.

The square root of 2828578280 is about 53184.3800377517. The cubic root of 2828578280 is about 1414.2387544666.

The spelling of 2828578280 in words is "two billion, eight hundred twenty-eight million, five hundred seventy-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 121 220 242 440 484 605 968 1210 2420 4840 584417 1168834 2337668 2922085 4675336 5844170 6428587 11688340 12857174 23376680 25714348 32142935 51428696 64285870 70714457 128571740 141428914 257143480 282857828 353572285 565715656 707144570 1414289140 2828578280