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20010012020110 = 257833444064031
BaseRepresentation
bin1001000110010111100011…
…01010001000110110001110
32121211221100010211211021101
410203023301222020312032
510110321001034120420
6110320250030253314
74133450515545610
oct443136152106616
977757303754241
1020010012020110
116415220141a22
1222b20a865723a
13b21c2261c3a8
144d26bdc2cdb0
1524a78dd1a60a
hex1232f1a88d8e

20010012020110 has 32 divisors (see below), whose sum is σ = 41659398531072. Its totient is φ = 6777918011040.

The previous prime is 20010012020083. The next prime is 20010012020111. The reversal of 20010012020110 is 1102021001002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010012020111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1722026206 + ... + 1722037825.

It is an arithmetic number, because the mean of its divisors is an integer number (1301856204096).

Almost surely, 220010012020110 is an apocalyptic number.

20010012020110 is an abundant number, since it is smaller than the sum of its proper divisors (21649386510962).

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

20010012020110 is a wasteful number, since it uses less digits than its factorization.

20010012020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444064128.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010012020110 its reverse (1102021001002), we get a palindrome (21112033021112).

The spelling of 20010012020110 in words is "twenty trillion, ten billion, twelve million, twenty thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 5810 3444064031 6888128062 17220320155 24108448217 34440640310 48216896434 120542241085 241084482170 285857314573 571714629146 1429286572865 2001001202011 2858573145730 4002002404022 10005006010055 20010012020110