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131022310025 = 5223261716057
BaseRepresentation
bin111101000000110001…
…0011100101010001001
3110112012011120222100002
41322001202130222021
54121313202410100
6140105114452345
712315566155025
oct1720142345211
9415164528302
10131022310025
1150625750852
12214871340b5
13c4809236c9
1464ad183385
15361c9a02d5
hex1e8189ca89

131022310025 has 36 divisors (see below), whose sum is σ = 170124457692. Its totient is φ = 100091819520.

The previous prime is 131022309961. The next prime is 131022310051. The reversal of 131022310025 is 520013220131.

It can be written as a sum of positive squares in 6 ways, for example, as 26938000384 + 104084309641 = 164128^2 + 322621^2 .

It is not a de Polignac number, because 131022310025 - 26 = 131022309961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131022309979 and 131022310006.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8151797 + ... + 8167853.

Almost surely, 2131022310025 is an apocalyptic number.

It is an amenable number.

131022310025 is a deficient number, since it is larger than the sum of its proper divisors (39102147667).

131022310025 is a wasteful number, since it uses less digits than its factorization.

131022310025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16730 (or 16702 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 131022310025 its reverse (520013220131), we get a palindrome (651035530156).

The spelling of 131022310025 in words is "one hundred thirty-one billion, twenty-two million, three hundred ten thousand, twenty-five".

Divisors: 1 5 23 25 115 529 575 617 2645 3085 13225 14191 15425 16057 70955 80285 326393 354775 369311 401425 1631965 1846555 8159825 8494153 9232775 9907169 42470765 49535845 212353825 227864887 247679225 1139324435 5240892401 5696622175 26204462005 131022310025