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131031023343142 = 21343939892877877
BaseRepresentation
bin11101110010110000001001…
…100110011101011000100110
3122011221102222022022211111211
4131302300021212131120212
5114133303013433440032
61142402453210222034
736412451623422166
oct3562601146353046
9564842868284454
10131031023343142
1138828a43783a8a
121284283472491a
135816231c36cb0
14244dd149165a6
15102363e6cb747
hex772c0999d626

131031023343142 has 32 divisors (see below), whose sum is σ = 212200909905600. Its totient is φ = 60322951628928.

The previous prime is 131031023343133. The next prime is 131031023343167. The reversal of 131031023343142 is 241343320130131.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 44091508 + ... + 46969384.

It is an arithmetic number, because the mean of its divisors is an integer number (6631278434550).

Almost surely, 2131031023343142 is an apocalyptic number.

131031023343142 is a deficient number, since it is larger than the sum of its proper divisors (81169886562458).

131031023343142 is a wasteful number, since it uses less digits than its factorization.

131031023343142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882320.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 131031023343142 its reverse (241343320130131), we get a palindrome (372374343473273).

The spelling of 131031023343142 in words is "one hundred thirty-one trillion, thirty-one billion, twenty-three million, three hundred forty-three thousand, one hundred forty-two".

Divisors: 1 2 13 26 439 878 3989 5707 7978 11414 51857 103714 1751171 2877877 3502342 5755754 22765223 37412401 45530446 74824802 1263388003 2526776006 11479851353 16424044039 22959702706 32848088078 149238067589 298476135178 5039654743967 10079309487934 65515511671571 131031023343142