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130757809 = 7131436899
BaseRepresentation
bin1111100101100…
…11010010110001
3100010001011222211
413302303102301
5231433222214
620550332121
73145265050
oct762632261
9303034884
10130757809
116789a306
123795a041
13211226b0
141351a397
15b72d0c4
hex7cb34b1

130757809 has 8 divisors (see below), whose sum is σ = 160932800. Its totient is φ = 103456656.

The previous prime is 130757801. The next prime is 130757849. The reversal of 130757809 is 908757031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130757809 - 23 = 130757801 is a prime.

It is a super-2 number, since 2×1307578092 = 34195209228960962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130757801) 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, 718359 + ... + 718540.

It is an arithmetic number, because the mean of its divisors is an integer number (20116600).

Almost surely, 2130757809 is an apocalyptic number.

It is an amenable number.

130757809 is a deficient number, since it is larger than the sum of its proper divisors (30174991).

130757809 is a wasteful number, since it uses less digits than its factorization.

130757809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436919.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 130757809 is about 11434.9380846597. The cubic root of 130757809 is about 507.5621304377.

The spelling of 130757809 in words is "one hundred thirty million, seven hundred fifty-seven thousand, eight hundred nine".

Divisors: 1 7 13 91 1436899 10058293 18679687 130757809