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131404310125 = 5311234155077
BaseRepresentation
bin111101001100001001…
…1101010011001101101
3110120011210101120221221
41322120103222121231
54123104000411000
6140211042223341
712331215130654
oct1723023523155
9416153346857
10131404310125
1150801342110
1221573054b51
13c511b0207a
146507bc019b
1536412aa61a
hex1e984ea66d

131404310125 has 32 divisors (see below), whose sum is σ = 186679344384. Its totient is φ = 91411672000.

The previous prime is 131404309991. The next prime is 131404310143. The reversal of 131404310125 is 521013404131.

It is not a de Polignac number, because 131404310125 - 221 = 131402212973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131404310125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2045914 + ... + 2109163.

It is an arithmetic number, because the mean of its divisors is an integer number (5833729512).

Almost surely, 2131404310125 is an apocalyptic number.

It is an amenable number.

131404310125 is a deficient number, since it is larger than the sum of its proper divisors (55275034259).

131404310125 is a wasteful number, since it uses less digits than its factorization.

131404310125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155126 (or 4155116 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 131404310125 its reverse (521013404131), we get a palindrome (652417714256).

The spelling of 131404310125 in words is "one hundred thirty-one billion, four hundred four million, three hundred ten thousand, one hundred twenty-five".

Divisors: 1 5 11 23 25 55 115 125 253 275 575 1265 1375 2875 6325 31625 4155077 20775385 45705847 95566771 103876925 228529235 477833855 519384625 1051234481 1142646175 2389169275 5256172405 5713230875 11945846375 26280862025 131404310125