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131401051366 = 21322391626613
BaseRepresentation
bin111101001100000011…
…1001110110011100110
3110120011120021000210011
41322120013032303212
54123102132120431
6140210444320434
712331145336134
oct1723007166346
9416146230704
10131401051366
11507aa516822
1221571b4311a
13c511230a00
1465075b2754
153640d64cb1
hex1e981cece6

131401051366 has 24 divisors (see below), whose sum is σ = 214322660640. Its totient is φ = 60392850336.

The previous prime is 131401051349. The next prime is 131401051403. The reversal of 131401051366 is 663150104131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732525 + ... + 894088.

It is an arithmetic number, because the mean of its divisors is an integer number (8930110860).

Almost surely, 2131401051366 is an apocalyptic number.

131401051366 is a deficient number, since it is larger than the sum of its proper divisors (82921609274).

131401051366 is a wasteful number, since it uses less digits than its factorization.

131401051366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626880 (or 1626867 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 131401051366 its reverse (663150104131), we get a palindrome (794551155497).

The spelling of 131401051366 in words is "one hundred thirty-one billion, four hundred one million, fifty-one thousand, three hundred sixty-six".

Divisors: 1 2 13 26 169 239 338 478 3107 6214 40391 80782 1626613 3253226 21145969 42291938 274897597 388760507 549795194 777521014 5053886591 10107773182 65700525683 131401051366