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20102102320310 = 257572655495683
BaseRepresentation
bin1001001001000011000101…
…01010110000010010110110
32122011202001001222210012122
410210201202222300102312
510113323101143222220
6110430440041115542
74143220556310053
oct444414252602266
978152031883178
1020102102320310
11645028777653a
122307b09488bb2
13b2a80a51449a
144d6d385b002a
1524cd7d945425
hex124862ab04b6

20102102320310 has 16 divisors (see below), whose sum is σ = 36231583112496. Its totient is φ = 8030218942368.

The previous prime is 20102102320273. The next prime is 20102102320331. The reversal of 20102102320310 is 1302320120102.

It is a super-2 number, since 2×201021023203102 (a number of 27 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 7 ways as a sum of consecutive naturals, for example, 1327740272 + ... + 1327755411.

It is an arithmetic number, because the mean of its divisors is an integer number (2264473944531).

Almost surely, 220102102320310 is an apocalyptic number.

20102102320310 is a deficient number, since it is larger than the sum of its proper divisors (16129480792186).

20102102320310 is a wasteful number, since it uses less digits than its factorization.

20102102320310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655496447.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20102102320310 its reverse (1302320120102), we get a palindrome (21404422440412).

The spelling of 20102102320310 in words is "twenty trillion, one hundred two billion, one hundred two million, three hundred twenty thousand, three hundred ten".

Divisors: 1 2 5 10 757 1514 3785 7570 2655495683 5310991366 13277478415 26554956830 2010210232031 4020420464062 10051051160155 20102102320310