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204828803380 = 22517602437657
BaseRepresentation
bin1011111011000010111…
…1111000000100110100
3201120200212112022110001
42332300233320010310
511323442133202010
6234032544041044
720540564046655
oct2766057700464
9646625468401
10204828803380
117995a5796a3
1233844903184
1316413869b96
149cb153b52c
1554dc360c3a
hex2fb0bf8134

204828803380 has 24 divisors (see below), whose sum is σ = 455442869448. Its totient is φ = 77112019968.

The previous prime is 204828803357. The next prime is 204828803383. The reversal of 204828803380 is 83308828402.

204828803380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 68582181924 + 136246621456 = 261882^2 + 369116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204828803380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204828803383) 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, 301218489 + ... + 301219168.

It is an arithmetic number, because the mean of its divisors is an integer number (18976786227).

Almost surely, 2204828803380 is an apocalyptic number.

204828803380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204828803380 is an abundant number, since it is smaller than the sum of its proper divisors (250614066068).

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

204828803380 is a wasteful number, since it uses less digits than its factorization.

204828803380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602437683 (or 602437681 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

It can be divided in two parts, 20482880 and 3380, that multiplied together give a square (69232134400 = 2631202).

The spelling of 204828803380 in words is "two hundred four billion, eight hundred twenty-eight million, eight hundred three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 602437657 1204875314 2409750628 3012188285 6024376570 10241440169 12048753140 20482880338 40965760676 51207200845 102414401690 204828803380