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20102212122230 = 257353981145651
BaseRepresentation
bin1001001001000011010010…
…01101100111011001110110
32122011202022201121022010102
410210201221031213121312
510113323312300402410
6110430455002354102
74143223361515220
oct444415115473166
978152281538112
1020102212122230
116450333752327
122307b3a1bb932
13b2a8271aa634
144d6d48dd3410
1524cd883d42a5
hex124869367676

20102212122230 has 32 divisors (see below), whose sum is σ = 41364807563520. Its totient is φ = 6890239432800.

The previous prime is 20102212122229. The next prime is 20102212122277. The reversal of 20102212122230 is 3222121220102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40325096 + ... + 40820555.

It is an arithmetic number, because the mean of its divisors is an integer number (1292650236360).

Almost surely, 220102212122230 is an apocalyptic number.

20102212122230 is an abundant number, since it is smaller than the sum of its proper divisors (21262595441290).

20102212122230 is a wasteful number, since it uses less digits than its factorization.

20102212122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81149204.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20102212122230 its reverse (3222121220102), we get a palindrome (23324333342332).

The spelling of 20102212122230 in words is "twenty trillion, one hundred two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 3539 7078 17695 24773 35390 49546 123865 247730 81145651 162291302 405728255 568019557 811456510 1136039114 2840097785 5680195570 287174458889 574348917778 1435872294445 2010221212223 2871744588890 4020442424446 10051106061115 20102212122230