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131485935 = 3571252247
BaseRepresentation
bin1111101011001…
…01000011101111
3100011102011210110
413311211003233
5232130022220
621014111103
73154416630
oct765450357
9304364713
10131485935
1168247369
123804b493
1321318c39
1413669887
15b823be0
hex7d650ef

131485935 has 16 divisors (see below), whose sum is σ = 240431616. Its totient is φ = 60107808.

The previous prime is 131485933. The next prime is 131485943. The reversal of 131485935 is 539584131.

It is not a de Polignac number, because 131485935 - 21 = 131485933 is a prime.

It is a super-2 number, since 2×1314859352 = 34577102205648450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131485893 and 131485902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131485933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626019 + ... + 626228.

It is an arithmetic number, because the mean of its divisors is an integer number (15026976).

Almost surely, 2131485935 is an apocalyptic number.

131485935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131485935 is a deficient number, since it is larger than the sum of its proper divisors (108945681).

131485935 is a wasteful number, since it uses less digits than its factorization.

131485935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252262.

The product of its digits is 64800, while the sum is 39.

The square root of 131485935 is about 11466.7316616375. The cubic root of 131485935 is about 508.5025084741.

The spelling of 131485935 in words is "one hundred thirty-one million, four hundred eighty-five thousand, nine hundred thirty-five".

Divisors: 1 3 5 7 15 21 35 105 1252247 3756741 6261235 8765729 18783705 26297187 43828645 131485935