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131255551115 = 5132377849523
BaseRepresentation
bin111101000111101110…
…0001100010010001011
3110112210102110211221222
41322033130030102023
54122302410113430
6140144205552255
712324430530143
oct1721734142213
9415712424858
10131255551115
1150735378287
122153127568b
13c4ba048ca0
1464d2139923
1536331c39e5
hex1e8f70c48b

131255551115 has 16 divisors (see below), whose sum is σ = 169694118048. Its totient is φ = 96886285056.

The previous prime is 131255551087. The next prime is 131255551129. The reversal of 131255551115 is 511155552131.

It is a cyclic number.

It is not a de Polignac number, because 131255551115 - 210 = 131255550091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270257 + ... + 579266.

It is an arithmetic number, because the mean of its divisors is an integer number (10605882378).

Almost surely, 2131255551115 is an apocalyptic number.

131255551115 is a deficient number, since it is larger than the sum of its proper divisors (38438566933).

131255551115 is a wasteful number, since it uses less digits than its factorization.

131255551115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851918.

The product of its digits is 18750, while the sum is 35.

The spelling of 131255551115 in words is "one hundred thirty-one billion, two hundred fifty-five million, five hundred fifty-one thousand, one hundred fifteen".

Divisors: 1 5 13 65 2377 11885 30901 154505 849523 4247615 11043799 55218995 2019316171 10096580855 26251110223 131255551115