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131484130 = 2541320693
BaseRepresentation
bin1111101011001…
…00100111100010
3100011102002022121
413311210213202
5232124443010
621014054454
73154411441
oct765444742
9304362277
10131484130
1168245a78
123804a42a
132131817b
1413668d58
15b8233da
hex7d649e2

131484130 has 16 divisors (see below), whose sum is σ = 242444664. Its totient is φ = 51310720.

The previous prime is 131484079. The next prime is 131484139. The reversal of 131484130 is 31484131.

It can be written as a sum of positive squares in 4 ways, for example, as 93180409 + 38303721 = 9653^2 + 6189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131484095 and 131484104.

It is not an unprimeable number, because it can be changed into a prime (131484139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159937 + ... + 160756.

Almost surely, 2131484130 is an apocalyptic number.

131484130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131484130 is a deficient number, since it is larger than the sum of its proper divisors (110960534).

131484130 is a wasteful number, since it uses less digits than its factorization.

131484130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320741.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 131484130 is about 11466.6529554182. The cubic root of 131484130 is about 508.5001816062.

Subtracting from 131484130 its reverse (31484131), we obtain a palindrome (99999999).

The spelling of 131484130 in words is "one hundred thirty-one million, four hundred eighty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 41 82 205 410 320693 641386 1603465 3206930 13148413 26296826 65742065 131484130