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130505574 = 2321750929
BaseRepresentation
bin1111100011101…
…01101101100110
3100002120100222210
413301311231212
5231402134244
620541104250
73143164503
oct761655546
9302510883
10130505574
1167737851
1237858086
1321064944
14134924aa
15b6cd4b9
hex7c75b66

130505574 has 8 divisors (see below), whose sum is σ = 261011160. Its totient is φ = 43501856.

The previous prime is 130505563. The next prime is 130505587. The reversal of 130505574 is 475505031.

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

130505574 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10875459 + ... + 10875470.

It is an arithmetic number, because the mean of its divisors is an integer number (32626395).

Almost surely, 2130505574 is an apocalyptic number.

130505574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130505574 is a wasteful number, since it uses less digits than its factorization.

130505574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21750934.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 130505574 is about 11423.9036235430. The cubic root of 130505574 is about 507.2355537833.

The spelling of 130505574 in words is "one hundred thirty million, five hundred five thousand, five hundred seventy-four".

Divisors: 1 2 3 6 21750929 43501858 65252787 130505574