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130678109 = 977391823
BaseRepresentation
bin1111100100111…
…11110101011101
3100002220010122222
413302133311131
5231423144414
620544515125
73144513512
oct762376535
9302803588
10130678109
1167845441
123791baa5
13210c5333
14134d9309
15b71468e
hex7c9fd5d

130678109 has 8 divisors (see below), whose sum is σ = 132276480. Its totient is φ = 129085056.

The previous prime is 130678069. The next prime is 130678123. The reversal of 130678109 is 901876031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130678109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130678309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70772 + ... + 72594.

It is an arithmetic number, because the mean of its divisors is an integer number (16534560).

Almost surely, 2130678109 is an apocalyptic number.

It is an amenable number.

130678109 is a deficient number, since it is larger than the sum of its proper divisors (1598371).

130678109 is an equidigital number, since it uses as much as digits as its factorization.

130678109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 130678109 is about 11431.4526198554. The cubic root of 130678109 is about 507.4589857413.

The spelling of 130678109 in words is "one hundred thirty million, six hundred seventy-eight thousand, one hundred nine".

Divisors: 1 97 739 1823 71683 176831 1347197 130678109