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131300312232 = 23326437206939
BaseRepresentation
bin111101001001000011…
…0111100010010101000
3110112220112200221200010
41322102012330102220
54122400334442412
6140152445211520
712325513145055
oct1722206742250
9415815627603
10131300312232
115075866aa41
1221544260ba0
13c4c63bb95b
1464d806c02c
1536370b633c
hex1e921bc4a8

131300312232 has 32 divisors (see below), whose sum is σ = 328264783200. Its totient is φ = 43764903744.

The previous prime is 131300312203. The next prime is 131300312279. The reversal of 131300312232 is 232213003131.

131300312232 is digitally balanced in base 3, 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 = 131300312199 and 131300312208.

It is an unprimeable number.

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, 531019 + ... + 737957.

It is an arithmetic number, because the mean of its divisors is an integer number (10258274475).

Almost surely, 2131300312232 is an apocalyptic number.

131300312232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131300312232 is an abundant number, since it is smaller than the sum of its proper divisors (196964470968).

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

131300312232 is a wasteful number, since it uses less digits than its factorization.

131300312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233385 (or 233381 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131300312232 its reverse (232213003131), we get a palindrome (363513315363).

The spelling of 131300312232 in words is "one hundred thirty-one billion, three hundred million, three hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 26437 52874 79311 105748 158622 206939 211496 317244 413878 620817 634488 827756 1241634 1655512 2483268 4966536 5470846343 10941692686 16412539029 21883385372 32825078058 43766770744 65650156116 131300312232