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131540131132355 = 51121210117967251
BaseRepresentation
bin11101111010001010010010…
…110010100011001111000011
3122020202010001220110011202202
4131322022102302203033003
5114220123142032213410
61143432411345103415
736464314034266061
oct3572122262431703
9566663056404682
10131540131132355
1138a04946864300
1212905437927b6b
135852247c7504a
14246a80d5ad031
1510319d9bcdca5
hex77a292ca33c3

131540131132355 has 24 divisors (see below), whose sum is σ = 173516867595792. Its totient is φ = 95657639000000.

The previous prime is 131540131132331. The next prime is 131540131132433. The reversal of 131540131132355 is 553231131045131.

It is not a de Polignac number, because 131540131132355 - 226 = 131540064023491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1662521 + ... + 16304730.

It is an arithmetic number, because the mean of its divisors is an integer number (7229869483158).

Almost surely, 2131540131132355 is an apocalyptic number.

131540131132355 is a deficient number, since it is larger than the sum of its proper divisors (41976736463437).

131540131132355 is a wasteful number, since it uses less digits than its factorization.

131540131132355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17979379 (or 17979368 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 38.

Adding to 131540131132355 its reverse (553231131045131), we get a palindrome (684771262177486).

The spelling of 131540131132355 in words is "one hundred thirty-one trillion, five hundred forty billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred fifty-five".

Divisors: 1 5 11 55 121 605 12101 60505 133111 665555 1464221 7321105 17967251 89836255 197639761 988198805 2174037371 10870186855 217421704351 1087108521755 2391638747861 11958193739305 26308026226471 131540131132355