Search a number
-
+
131442220430 = 2583433487751
BaseRepresentation
bin111101001101010010…
…0010001110110001110
3110120021102201122010022
41322122210101312032
54123143202023210
6140214514542142
712332155303433
oct1723244216616
9416242648108
10131442220430
1150820785744
1221583897952
13c5199166c1
14650cc4bb8a
153644798155
hex1e9a911d8e

131442220430 has 64 divisors (see below), whose sum is σ = 240812587008. Its totient is φ = 51648192000.

The previous prime is 131442220373. The next prime is 131442220477. The reversal of 131442220430 is 34022244131.

131442220430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 131442220430.

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 31 ways as a sum of consecutive naturals, for example, 175022555 + ... + 175023305.

It is an arithmetic number, because the mean of its divisors is an integer number (3762696672).

Almost surely, 2131442220430 is an apocalyptic number.

131442220430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131442220430 is a deficient number, since it is larger than the sum of its proper divisors (109370366578).

131442220430 is a wasteful number, since it uses less digits than its factorization.

131442220430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 131442220430 its reverse (34022244131), we get a palindrome (165464464561).

The spelling of 131442220430 in words is "one hundred thirty-one billion, four hundred forty-two million, two hundred twenty thousand, four hundred thirty".

Divisors: 1 2 5 10 83 166 415 433 487 751 830 866 974 1502 2165 2435 3755 4330 4870 7510 35939 40421 62333 71878 80842 124666 179695 202105 210871 311665 325183 359390 365737 404210 421742 623330 650366 731474 1054355 1625915 1828685 2108710 3251830 3657370 17502293 26990189 30356171 35004586 53980378 60712342 87511465 134950945 151780855 158364121 175022930 269901890 303561710 316728242 791820605 1583641210 13144222043 26288444086 65721110215 131442220430