Search a number
-
+
231030130030 = 25710132677529
BaseRepresentation
bin1101011100101001111…
…0000000010101101110
3211002022212221121121121
43113022132000111232
512241122203130110
6254044521251154
722456066463260
oct3271236002556
9732285847547
10231030130030
1189a85538167
1238937633aba
1318a2ac4066b
14b27927bb30
156022731cda
hex35ca78056e

231030130030 has 32 divisors (see below), whose sum is σ = 479967560640. Its totient is φ = 78426067200.

The previous prime is 231030130027. The next prime is 231030130031. The reversal of 231030130030 is 30031030132.

231030130030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231030129986 and 231030130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030130031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16331695 + ... + 16345834.

It is an arithmetic number, because the mean of its divisors is an integer number (14998986270).

Almost surely, 2231030130030 is an apocalyptic number.

231030130030 is an abundant number, since it is smaller than the sum of its proper divisors (248937430610).

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

231030130030 is a wasteful number, since it uses less digits than its factorization.

231030130030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32677644.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 231030130030 its reverse (30031030132), we get a palindrome (261061160162).

The spelling of 231030130030 in words is "two hundred thirty-one billion, thirty million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 101 202 505 707 1010 1414 3535 7070 32677529 65355058 163387645 228742703 326775290 457485406 1143713515 2287427030 3300430429 6600860858 16502152145 23103013003 33004304290 46206026006 115515065015 231030130030