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2028202840 = 235223227377
BaseRepresentation
bin111100011100011…
…1110101101011000
312020100102101020201
41320320332231120
513123204442330
6533131231544
7101155303546
oct17070765530
95210371221
102028202840
1195095a8a4
124872a85b4
13264270331
1415351ad96
15bd0d3eca
hex78e3eb58

2028202840 has 32 divisors (see below), whose sum is σ = 4583940480. Its totient is φ = 807639552.

The previous prime is 2028202733. The next prime is 2028202853. The reversal of 2028202840 is 482028202.

It is a super-2 number, since 2×20282028402 = 8227213520368131200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028202799 and 2028202808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104769 + ... + 122608.

It is an arithmetic number, because the mean of its divisors is an integer number (143248140).

Almost surely, 22028202840 is an apocalyptic number.

2028202840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028202840 is an abundant number, since it is smaller than the sum of its proper divisors (2555737640).

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

2028202840 is a wasteful number, since it uses less digits than its factorization.

2028202840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227611 (or 227607 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 2028202840 is about 45035.5730506452. The cubic root of 2028202840 is about 1265.8156539812.

The spelling of 2028202840 in words is "two billion, twenty-eight million, two hundred two thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 223 446 892 1115 1784 2230 4460 8920 227377 454754 909508 1136885 1819016 2273770 4547540 9095080 50705071 101410142 202820284 253525355 405640568 507050710 1014101420 2028202840