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130983949 is a prime number
BaseRepresentation
bin1111100111010…
…10100000001101
3100010110200012101
413303222200031
5232012441244
620555235101
73150226255
oct763524015
9303420171
10130983949
1167a341a8
1237a48a91
13211a15c5
1413578965
15b7750d4
hex7cea80d

130983949 has 2 divisors, whose sum is σ = 130983950. Its totient is φ = 130983948.

The previous prime is 130983913. The next prime is 130983961. The reversal of 130983949 is 949389031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124768900 + 6215049 = 11170^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 130983949 - 27 = 130983821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130983899 and 130983908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130986949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65491974 + 65491975.

It is an arithmetic number, because the mean of its divisors is an integer number (65491975).

Almost surely, 2130983949 is an apocalyptic number.

It is an amenable number.

130983949 is a deficient number, since it is larger than the sum of its proper divisors (1).

130983949 is an equidigital number, since it uses as much as digits as its factorization.

130983949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 130983949 is about 11444.8219295889. The cubic root of 130983949 is about 507.8545642012.

It can be divided in two parts, 1309 and 83949, that added together give a palindrome (85258).

The spelling of 130983949 in words is "one hundred thirty million, nine hundred eighty-three thousand, nine hundred forty-nine".