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130055242 = 2412915749
BaseRepresentation
bin1111100000001…
…11110001001010
3100001201111020211
413300013301022
5231243231432
620523311334
73136310542
oct760076112
9301644224
10130055242
116745a479
123767b54a
1320c37985
14133b6322
15b63ed47
hex7c07c4a

130055242 has 8 divisors (see below), whose sum is σ = 195142500. Its totient is φ = 65007744.

The previous prime is 130055221. The next prime is 130055279. The reversal of 130055242 is 242550031.

It can be written as a sum of positive squares in 2 ways, for example, as 119224561 + 10830681 = 10919^2 + 3291^2 .

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

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, 384 + ... + 16132.

Almost surely, 2130055242 is an apocalyptic number.

130055242 is a deficient number, since it is larger than the sum of its proper divisors (65087258).

130055242 is a wasteful number, since it uses less digits than its factorization.

130055242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19880.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 130055242 is about 11404.1765156455. The cubic root of 130055242 is about 506.6514468151.

The spelling of 130055242 in words is "one hundred thirty million, fifty-five thousand, two hundred forty-two".

Divisors: 1 2 4129 8258 15749 31498 65027621 130055242