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20100210211100 = 2252355956477129
BaseRepresentation
bin1001001000111111100011…
…11000111011100100011100
32122011120011012122200022202
410210133301320323210130
510113310212303223400
6110425524210431032
74143122642533505
oct444376170734434
978146135580282
1020100210211100
11644a4a671a918
12230767b892478
13b2a598514436
144d6bd919bbac
1524ccbc7954d5
hex1247f1e3b91c

20100210211100 has 36 divisors (see below), whose sum is σ = 43629712467600. Its totient is φ = 8037824856960.

The previous prime is 20100210211097. The next prime is 20100210211111. The reversal of 20100210211100 is 111201200102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27882665 + ... + 28594464.

Almost surely, 220100210211100 is an apocalyptic number.

20100210211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100210211100 is an abundant number, since it is smaller than the sum of its proper divisors (23529502256500).

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

20100210211100 is a wasteful number, since it uses less digits than its factorization.

20100210211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56480702 (or 56480695 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100210211100 its reverse (111201200102), we get a palindrome (20211411411202).

The spelling of 20100210211100 in words is "twenty trillion, one hundred billion, two hundred ten million, two hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 3559 7118 14236 17795 35590 71180 88975 177950 355900 56477129 112954258 225908516 282385645 564771290 1129542580 1411928225 2823856450 5647712900 201002102111 402004204222 804008408444 1005010510555 2010021021110 4020042042220 5025052552775 10050105105550 20100210211100