Search a number
-
+
131053533405515 = 5721735987647449
BaseRepresentation
bin11101110011000101000111…
…010011100010000101001011
3122012000121002001222111000122
4131303011013103202011023
5114134140114022434030
61142421055003053455
736414206504664200
oct3563050723420513
9565017061874018
10131053533405515
113883754505a016
121284707721128b
1358183ab655126
14245104c30bca7
15102400a9ae8e5
hex7731474e214b

131053533405515 has 48 divisors (see below), whose sum is σ = 194240772792000. Its totient is φ = 84343489800192.

The previous prime is 131053533405449. The next prime is 131053533405523. The reversal of 131053533405515 is 515504335350131.

It is not a de Polignac number, because 131053533405515 - 212 = 131053533401419 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 42328490 + ... + 45318959.

It is an arithmetic number, because the mean of its divisors is an integer number (4046682766500).

Almost surely, 2131053533405515 is an apocalyptic number.

131053533405515 is a deficient number, since it is larger than the sum of its proper divisors (63187239386485).

131053533405515 is a wasteful number, since it uses less digits than its factorization.

131053533405515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87647844 (or 87647837 counting only the distinct ones).

The product of its (nonzero) digits is 1012500, while the sum is 44.

Adding to 131053533405515 its reverse (515504335350131), we get a palindrome (646557868755646).

The spelling of 131053533405515 in words is "one hundred thirty-one trillion, fifty-three billion, five hundred thirty-three million, four hundred five thousand, five hundred fifteen".

Divisors: 1 5 7 17 35 49 85 119 245 359 595 833 1795 2513 4165 6103 12565 17591 30515 42721 87955 213605 299047 1495235 87647449 438237245 613532143 1490006633 3067660715 4294725001 7450033165 10430046431 21473625005 31465434191 52150232155 73010325017 157327170955 220258039337 365051625085 534912381247 1101290196685 1541806275359 2674561906235 3744386668729 7709031376795 18721933343645 26210706681103 131053533405515