Search a number
-
+
131302011123500 = 22537281733118211
BaseRepresentation
bin11101110110101100100001…
…101110110011011100101100
3122012220100102220122101210112
4131312230201232303130230
5114202223004321423000
61143131151114555152
736441154144514030
oct3566544156633454
9565810386571715
10131302011123500
1138922963274258
1212887261a38ab8
13583595a21ca19
14245d0a089a1c0
15102a6eed2c235
hex776b21bb372c

131302011123500 has 192 divisors, whose sum is σ = 328959044563968. Its totient is φ = 44849044800000.

The previous prime is 131302011123473. The next prime is 131302011123509. The reversal of 131302011123500 is 5321110203131.

It is not an unprimeable number, because it can be changed into a prime (131302011123509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7210029395 + ... + 7210047605.

It is an arithmetic number, because the mean of its divisors is an integer number (1713328357104).

Almost surely, 2131302011123500 is an apocalyptic number.

131302011123500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131302011123500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164479522281984).

131302011123500 is an abundant number, since it is smaller than the sum of its proper divisors (197657033440468).

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

131302011123500 is a wasteful number, since it uses less digits than its factorization.

131302011123500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25849 (or 25837 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 131302011123500 its reverse (5321110203131), we get a palindrome (136623121326631).

The spelling of 131302011123500 in words is "one hundred thirty-one trillion, three hundred two billion, eleven million, one hundred twenty-three thousand, five hundred".