Search a number
-
+
2131031102132 = 222918370957777
BaseRepresentation
bin11111000000101011010…
…110100001001010110100
321112201120012222111210202
4133000223112201022310
5234403322430232012
64310552052140032
7306650636332052
oct37005326411264
97481505874722
102131031102132
11751846557239
122a5012007618
13125c55c458ba
14751dcc811d2
153a676617cc2
hex1f02b5a12b4

2131031102132 has 12 divisors (see below), whose sum is σ = 3857901133380. Its totient is φ = 1028773635456.

The previous prime is 2131031102111. The next prime is 2131031102173. The reversal of 2131031102132 is 2312011301312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 889313125156 + 1241717976976 = 943034^2 + 1114324^2 .

It is a super-2 number, since 2×21310311021322 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9185478773 + ... + 9185479004.

It is an arithmetic number, because the mean of its divisors is an integer number (321491761115).

Almost surely, 22131031102132 is an apocalyptic number.

It is an amenable number.

2131031102132 is a deficient number, since it is larger than the sum of its proper divisors (1726870031248).

2131031102132 is a wasteful number, since it uses less digits than its factorization.

2131031102132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18370957810 (or 18370957808 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2131031102132 its reverse (2312011301312), we get a palindrome (4443042403444).

The spelling of 2131031102132 in words is "two trillion, one hundred thirty-one billion, thirty-one million, one hundred two thousand, one hundred thirty-two".

Divisors: 1 2 4 29 58 116 18370957777 36741915554 73483831108 532757775533 1065515551066 2131031102132