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131726157157 = 7193251463839
BaseRepresentation
bin111101010101101111…
…1011010010101100101
3110121000020000010002101
41322223133122111211
54124233344012112
6140303020412101
712342203601340
oct1725337322545
9417006003071
10131726157157
1150956a885a1
12216429a7031
13c5636abbba
14653883d457
15365e682757
hex1eab7da565

131726157157 has 32 divisors (see below), whose sum is σ = 152436695040. Its totient is φ = 111500928000.

The previous prime is 131726157061. The next prime is 131726157161. The reversal of 131726157157 is 751751627131.

It is not a de Polignac number, because 131726157157 - 227 = 131591939429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131726157257) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 157003344 + ... + 157004182.

It is an arithmetic number, because the mean of its divisors is an integer number (4763646720).

Almost surely, 2131726157157 is an apocalyptic number.

It is an amenable number.

131726157157 is a deficient number, since it is larger than the sum of its proper divisors (20710537883).

131726157157 is a wasteful number, since it uses less digits than its factorization.

131726157157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its digits is 308700, while the sum is 46.

The spelling of 131726157157 in words is "one hundred thirty-one billion, seven hundred twenty-six million, one hundred fifty-seven thousand, one hundred fifty-seven".

Divisors: 1 7 193 251 463 839 1351 1757 3241 5873 48443 89359 116213 161927 210589 339101 388457 625513 813491 1133489 1474123 2719199 22429109 40643677 74972201 97502707 157003763 284505739 524805407 682518949 18818022451 131726157157