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131230032330 = 2356177089683
BaseRepresentation
bin111101000110111101…
…0110110000111001010
3110112201122110100202210
41322031322312013022
54122224342013310
6140141455005550
712324000604305
oct1721572660712
9415648410683
10131230032330
1150721a28681
12215248098b6
13c4b4982907
1464cc9b5b3c
153630d32820
hex1e8deb61ca

131230032330 has 32 divisors (see below), whose sum is σ = 315462579264. Its totient is φ = 34937952896.

The previous prime is 131230032301. The next prime is 131230032337. The reversal of 131230032330 is 33230032131.

It is a junction number, because it is equal to n+sod(n) for n = 131230032297 and 131230032306.

It is not an unprimeable number, because it can be changed into a prime (131230032337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526332 + ... + 3563351.

It is an arithmetic number, because the mean of its divisors is an integer number (9858205602).

Almost surely, 2131230032330 is an apocalyptic number.

131230032330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131230032330 is an abundant number, since it is smaller than the sum of its proper divisors (184232546934).

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

131230032330 is a wasteful number, since it uses less digits than its factorization.

131230032330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090310.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 131230032330 its reverse (33230032131), we get a palindrome (164460064461).

The spelling of 131230032330 in words is "one hundred thirty-one billion, two hundred thirty million, thirty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 617 1234 1851 3085 3702 6170 9255 18510 7089683 14179366 21269049 35448415 42538098 70896830 106345245 212690490 4374334411 8748668822 13123003233 21871672055 26246006466 43743344110 65615016165 131230032330