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131250130501505 = 5371283552969731
BaseRepresentation
bin11101110101111100001101…
…011001111011111110000001
3122012201101112021002201210012
4131311330031121323332001
5114200400231402022010
61143051251053114305
736434336405510231
oct3565741531737601
9565641467081705
10131250130501505
113890295aa91054
12128791a3188995
135830aac972722
14245a77c4a7cc1
1510291b5306005
hex775f0d67bf81

131250130501505 has 16 divisors (see below), whose sum is σ = 161882994982464. Its totient is φ = 102082635915840.

The previous prime is 131250130501423. The next prime is 131250130501531. The reversal of 131250130501505 is 505105031052131.

It is not a de Polignac number, because 131250130501505 - 28 = 131250130501249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276247511 + ... + 276722220.

It is an arithmetic number, because the mean of its divisors is an integer number (10117687186404).

Almost surely, 2131250130501505 is an apocalyptic number.

It is an amenable number.

131250130501505 is a deficient number, since it is larger than the sum of its proper divisors (30632864480959).

131250130501505 is a wasteful number, since it uses less digits than its factorization.

131250130501505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552971056.

The product of its (nonzero) digits is 11250, while the sum is 32.

Adding to 131250130501505 its reverse (505105031052131), we get a palindrome (636355161553636).

The spelling of 131250130501505 in words is "one hundred thirty-one trillion, two hundred fifty billion, one hundred thirty million, five hundred one thousand, five hundred five".

Divisors: 1 5 37 185 1283 6415 47471 237355 552969731 2764848655 20459880047 102299400235 709460164873 3547300824365 26250026100301 131250130501505