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102110133220 = 2255105506661
BaseRepresentation
bin101111100011000111…
…1001111101111100100
3100202120020020012211221
41133012033033233210
53133110143230340
6114524142310124
710243245545254
oct1370617175744
9322506205757
10102110133220
113a339565457
1217958588344
139823a37994
144d293c7964
1529c960444a
hex17c63cfbe4

102110133220 has 12 divisors (see below), whose sum is σ = 214431279804. Its totient is φ = 40844053280.

The previous prime is 102110133199. The next prime is 102110133221. The reversal of 102110133220 is 22331011201.

It can be written as a sum of positive squares in 2 ways, for example, as 79361650944 + 22748482276 = 281712^2 + 150826^2 .

It is a super-2 number, since 2×1021101332202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102110133194 and 102110133203.

It is not an unprimeable number, because it can be changed into a prime (102110133221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552753311 + ... + 2552753350.

It is an arithmetic number, because the mean of its divisors is an integer number (17869273317).

Almost surely, 2102110133220 is an apocalyptic number.

102110133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110133220 is an abundant number, since it is smaller than the sum of its proper divisors (112321146584).

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

102110133220 is a wasteful number, since it uses less digits than its factorization.

102110133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105506670 (or 5105506668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102110133220 its reverse (22331011201), we get a palindrome (124441144421).

The spelling of 102110133220 in words is "one hundred two billion, one hundred ten million, one hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5105506661 10211013322 20422026644 25527533305 51055066610 102110133220