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130551205 = 526110241
BaseRepresentation
bin1111100100000…
…00110110100101
3100002122200120211
413302000312211
5231410114310
620542055421
73143444521
oct762006645
9302580524
10130551205
1167769064
123787a571
132107c645
14134a4d81
15b6dbc8a
hex7c80da5

130551205 has 4 divisors (see below), whose sum is σ = 156661452. Its totient is φ = 104440960.

The previous prime is 130551191. The next prime is 130551217. The reversal of 130551205 is 502155031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26388769 + 104162436 = 5137^2 + 10206^2 .

It is not a de Polignac number, because 130551205 - 211 = 130549157 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 13055116 + ... + 13055125.

It is an arithmetic number, because the mean of its divisors is an integer number (39165363).

Almost surely, 2130551205 is an apocalyptic number.

It is an amenable number.

130551205 is a deficient number, since it is larger than the sum of its proper divisors (26110247).

130551205 is an equidigital number, since it uses as much as digits as its factorization.

130551205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110246.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 130551205 is about 11425.9006209576. The cubic root of 130551205 is about 507.2946648434.

The spelling of 130551205 in words is "one hundred thirty million, five hundred fifty-one thousand, two hundred five".

Divisors: 1 5 26110241 130551205