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131323321230 = 2354377444041
BaseRepresentation
bin111101001001101111…
…0101101101110001110
3110112222010222221002020
41322103132231232032
54122422232234410
6140155030311010
712326212545513
oct1722336555616
9415863887066
10131323321230
115076a655a42
122154bab8466
13c4cb0b684a
1464db13b30a
15363910da70
hex1e937adb8e

131323321230 has 16 divisors (see below), whose sum is σ = 315175971024. Its totient is φ = 35019552320.

The previous prime is 131323321183. The next prime is 131323321243. The reversal of 131323321230 is 32123323131.

It is a self number, because there is not a number n which added to its sum of digits gives 131323321230.

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 7 ways as a sum of consecutive naturals, for example, 2188721991 + ... + 2188722050.

It is an arithmetic number, because the mean of its divisors is an integer number (19698498189).

Almost surely, 2131323321230 is an apocalyptic number.

131323321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131323321230 is an abundant number, since it is smaller than the sum of its proper divisors (183852649794).

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

131323321230 is a wasteful number, since it uses less digits than its factorization.

131323321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377444051.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131323321230 its reverse (32123323131), we get a palindrome (163446644361).

The spelling of 131323321230 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4377444041 8754888082 13132332123 21887220205 26264664246 43774440410 65661660615 131323321230