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2130210103220 = 225178970396897
BaseRepresentation
bin11110111111111010011…
…010101001111110110100
321112122110000010110000122
4132333322122221332310
5234400132241300340
64310334403231112
7306621410056163
oct36777232517664
97478400113018
102130210103220
11751465083641
122a4a23078498
13125b54b1ca24
1475161c0b3da
153a6294e3db5
hex1effa6a9fb4

2130210103220 has 48 divisors (see below), whose sum is σ = 4789804939920. Its totient is φ = 792950636544.

The previous prime is 2130210103213. The next prime is 2130210103247. The reversal of 2130210103220 is 223010120312.

It can be written as a sum of positive squares in 8 ways, for example, as 8165291044 + 2122044812176 = 90362^2 + 1456724^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 35168189 + ... + 35228708.

It is an arithmetic number, because the mean of its divisors is an integer number (99787602915).

Almost surely, 22130210103220 is an apocalyptic number.

2130210103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130210103220 is an abundant number, since it is smaller than the sum of its proper divisors (2659594836700).

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

2130210103220 is a wasteful number, since it uses less digits than its factorization.

2130210103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70397012 (or 70397010 counting only the distinct ones).

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

Adding to 2130210103220 its reverse (223010120312), we get a palindrome (2353220223532).

The spelling of 2130210103220 in words is "two trillion, one hundred thirty billion, two hundred ten million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 89 170 178 340 356 445 890 1513 1780 3026 6052 7565 15130 30260 70396897 140793794 281587588 351984485 703968970 1196747249 1407937940 2393494498 4786988996 5983736245 6265323833 11967472490 12530647666 23934944980 25061295332 31326619165 62653238330 106510505161 125306476660 213021010322 426042020644 532552525805 1065105051610 2130210103220