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231130585097 = 1971831640771
BaseRepresentation
bin1101011101000001110…
…1001101100000001001
3211002120212222021001122
43113100131031200021
512241323412210342
6254102510325025
722461426362216
oct3272035154011
9732525867048
10231130585097
118a02720a585
12389651b9775
1318a459b3329
14b28874ab0d
15602b4764d2
hex35d074d809

231130585097 has 8 divisors (see below), whose sum is σ = 232431072192. Its totient is φ = 229831383600.

The previous prime is 231130585093. The next prime is 231130585117. The reversal of 231130585097 is 790585031132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231130585097 - 22 = 231130585093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231130585093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40322 + ... + 681092.

It is an arithmetic number, because the mean of its divisors is an integer number (29053884024).

Almost surely, 2231130585097 is an apocalyptic number.

It is an amenable number.

231130585097 is a deficient number, since it is larger than the sum of its proper divisors (1300487095).

231130585097 is a wasteful number, since it uses less digits than its factorization.

231130585097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642799.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 231130585097 in words is "two hundred thirty-one billion, one hundred thirty million, five hundred eighty-five thousand, ninety-seven".

Divisors: 1 197 1831 360707 640771 126231887 1173251701 231130585097