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1020202010210 = 253472347125269
BaseRepresentation
bin11101101100010001100…
…01110100011001100010
310121112022122001212122102
432312020301310121202
5113203333203311320
62100401353410402
7133464362001665
oct16661061643142
93545278055572
101020202010210
113637354901a9
1214587b709a02
1375287782736
14375414b56dc
151b8100d7175
hexed88c74662

1020202010210 has 32 divisors (see below), whose sum is σ = 1842455125440. Its totient is φ = 406728159552.

The previous prime is 1020202010189. The next prime is 1020202010239. The reversal of 1020202010210 is 120102020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020202010191 and 1020202010200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8081456 + ... + 8206724.

It is an arithmetic number, because the mean of its divisors is an integer number (57576722670).

Almost surely, 21020202010210 is an apocalyptic number.

1020202010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020202010210 is a deficient number, since it is larger than the sum of its proper divisors (822253115230).

1020202010210 is a wasteful number, since it uses less digits than its factorization.

1020202010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127970.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020202010210 its reverse (120102020201), we get a palindrome (1140304030411).

Subtracting from 1020202010210 its reverse (120102020201), we obtain a palindrome (900099990009).

The spelling of 1020202010210 in words is "one trillion, twenty billion, two hundred two million, ten thousand, two hundred ten".

Divisors: 1 2 5 10 347 694 1735 2347 3470 4694 11735 23470 125269 250538 626345 814409 1252690 1628818 4072045 8144090 43468343 86936686 217341715 294006343 434683430 588012686 1470031715 2940063430 102020201021 204040402042 510101005105 1020202010210