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2028510310100 = 225247214296781
BaseRepresentation
bin11101100001001100101…
…000101110111011010100
321011220221101000122222012
4131201030220232323110
5231213342114410400
64151515035523352
7266361243066461
oct35411450567324
97156841018865
102028510310100
1171231720683a
1228917bbb9558
13119398106c51
147027511a668
1537b75e46d35
hex1d84ca2eed4

2028510310100 has 36 divisors (see below), whose sum is σ = 4402800799068. Its totient is φ = 811232064000.

The previous prime is 2028510310081. The next prime is 2028510310117. The reversal of 2028510310100 is 10130158202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 95309273284 + 1933201036816 = 308722^2 + 1390396^2 .

It is a super-2 number, since 2×20285103101002 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1676291 + ... + 2620490.

Almost surely, 22028510310100 is an apocalyptic number.

2028510310100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028510310100 is an abundant number, since it is smaller than the sum of its proper divisors (2374290488968).

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

2028510310100 is a wasteful number, since it uses less digits than its factorization.

2028510310100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301516 (or 4301509 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 2028510310100 its reverse (10130158202), we get a palindrome (2038640468302).

The spelling of 2028510310100 in words is "two trillion, twenty-eight billion, five hundred ten million, three hundred ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 4721 9442 18884 23605 47210 94420 118025 236050 472100 4296781 8593562 17187124 21483905 42967810 85935620 107419525 214839050 429678100 20285103101 40570206202 81140412404 101425515505 202851031010 405702062020 507127577525 1014255155050 2028510310100