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20010220102010 = 2519723344398407
BaseRepresentation
bin1001000110010111111100…
…00011111010000101111010
32121211221212122101110222102
410203023332003322011322
510110321412321231020
6110320322422223402
74133455623323435
oct443137603720572
977757778343872
1020010220102010
116415317644a36
1222b2146284b62
13b21c56776188
144d26dd71681c
1524a7a221e475
hex1232fe0fa17a

20010220102010 has 64 divisors (see below), whose sum is σ = 36439040132352. Its totient is φ = 7911300773376.

The previous prime is 20010220101983. The next prime is 20010220102027. The reversal of 20010220102010 is 1020102201002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20010220101982 and 20010220102000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203292227 + ... + 203390633.

It is an arithmetic number, because the mean of its divisors is an integer number (569360002068).

Almost surely, 220010220102010 is an apocalyptic number.

20010220102010 is a deficient number, since it is larger than the sum of its proper divisors (16428820030342).

20010220102010 is a wasteful number, since it uses less digits than its factorization.

20010220102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99287.

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

Adding to 20010220102010 its reverse (1020102201002), we get a palindrome (21030322303012).

The spelling of 20010220102010 in words is "twenty trillion, ten billion, two hundred twenty million, one hundred two thousand, ten".

Divisors: 1 2 5 10 197 233 394 443 466 886 985 1165 1970 2215 2330 4430 45901 87271 91802 98407 103219 174542 196814 206438 229505 436355 459010 492035 516095 872710 984070 1032190 19386179 20334143 22928831 38772358 40668286 43594301 45857662 87188602 96930895 101670715 114644155 193861790 203341430 217971505 229288310 435943010 4516979707 8588077297 9033959414 10157472133 17176154594 20314944266 22584898535 42940386485 45169797070 50787360665 85880772970 101574721330 2001022010201 4002044020402 10005110051005 20010220102010