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130242697 = 1310018669
BaseRepresentation
bin1111100001101…
…01100010001001
3100002002000101121
413300311202021
5231320231242
620531315241
73141021214
oct760654211
9302060347
10130242697
11675782a2
123774bb21
1320ca20b0
141342477b
15b67a667
hex7c35889

130242697 has 4 divisors (see below), whose sum is σ = 140261380. Its totient is φ = 120224016.

The previous prime is 130242653. The next prime is 130242733. The reversal of 130242697 is 796242031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796242031 = 1361249387.

It can be written as a sum of positive squares in 2 ways, for example, as 88717561 + 41525136 = 9419^2 + 6444^2 .

It is a cyclic number.

It is not a de Polignac number, because 130242697 - 219 = 129718409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130248697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009322 + ... + 5009347.

It is an arithmetic number, because the mean of its divisors is an integer number (35065345).

Almost surely, 2130242697 is an apocalyptic number.

It is an amenable number.

130242697 is a deficient number, since it is larger than the sum of its proper divisors (10018683).

130242697 is a wasteful number, since it uses less digits than its factorization.

130242697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018682.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 130242697 is about 11412.3922557893. The cubic root of 130242697 is about 506.8947504851.

The spelling of 130242697 in words is "one hundred thirty million, two hundred forty-two thousand, six hundred ninety-seven".

Divisors: 1 13 10018669 130242697