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159378208730 = 25131225986221
BaseRepresentation
bin1001010001101110101…
…1100111011111011010
3120020101100012212201122
42110123223213133122
510102401310134410
6201114540045242
714341353264446
oct2243353473732
9506340185648
10159378208730
1161656931184
1226a7b533822
131204c4b14b0
1479dd0d7826
15422c0b7e55
hex251bae77da

159378208730 has 16 divisors (see below), whose sum is σ = 308948527944. Its totient is φ = 58847338560.

The previous prime is 159378208723. The next prime is 159378208741. The reversal of 159378208730 is 37802873951.

159378208730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91892040769 + 67486167961 = 303137^2 + 259781^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612992981 + ... + 612993240.

Almost surely, 2159378208730 is an apocalyptic number.

159378208730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159378208730 is a deficient number, since it is larger than the sum of its proper divisors (149570319214).

159378208730 is a wasteful number, since it uses less digits than its factorization.

159378208730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225986241.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 159378208730 in words is "one hundred fifty-nine billion, three hundred seventy-eight million, two hundred eight thousand, seven hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1225986221 2451972442 6129931105 12259862210 15937820873 31875641746 79689104365 159378208730