Search a number
-
+
2131031011230 = 234511239172953
BaseRepresentation
bin11111000000101011010…
…110001010111110011110
321112201120012210220010000
4133000223112022332132
5234403322414324410
64310552050155130
7306650635503042
oct37005326127636
97481505726100
102131031011230
117518464a4a10
122a5011b82aa6
13125c55c13404
14751dcc5a022
153a6765eadc0
hex1f02b58af9e

2131031011230 has 80 divisors (see below), whose sum is σ = 6251024325744. Its totient is φ = 516613576320.

The previous prime is 2131031011199. The next prime is 2131031011247. The reversal of 2131031011230 is 321101301312.

2131031011230 is a `hidden beast` number, since 2 + 1 + 310 + 310 + 1 + 12 + 30 = 666.

It is a super-2 number, since 2×21310310112302 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 119577567 + ... + 119595386.

Almost surely, 22131031011230 is an apocalyptic number.

2131031011230 is an abundant number, since it is smaller than the sum of its proper divisors (4119993314514).

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

2131031011230 is a wasteful number, since it uses less digits than its factorization.

2131031011230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239172983 (or 239172974 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 2131031011230 its reverse (321101301312), we get a palindrome (2452132312542).

The spelling of 2131031011230 in words is "two trillion, one hundred thirty-one billion, thirty-one million, eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 135 162 165 198 270 297 330 405 495 594 810 891 990 1485 1782 2970 4455 8910 239172953 478345906 717518859 1195864765 1435037718 2152556577 2391729530 2630902483 3587594295 4305113154 5261804966 6457669731 7175188590 7892707449 10762782885 12915339462 13154512415 15785414898 19373009193 21525565770 23678122347 26309024830 32288348655 38746018386 39463537245 47356244694 64576697310 71034367041 78927074490 96865045965 118390611735 142068734082 193730091930 213103101123 236781223470 355171835205 426206202246 710343670410 1065515505615 2131031011230