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130042550 = 252111012341
BaseRepresentation
bin1111100000001…
…00101010110110
3100001200211211202
413300010222312
5231242330200
620523132502
73136225541
oct760045266
9301624752
10130042550
1167450990
1237674132
1320c31c71
14133b1858
15b63b1d5
hex7c04ab6

130042550 has 48 divisors (see below), whose sum is σ = 266594544. Its totient is φ = 46800000.

The previous prime is 130042513. The next prime is 130042553. The reversal of 130042550 is 55240031.

130042550 is nontrivially palindromic in base 6.

It is a super-2 number, since 2×1300425502 = 33822129621005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130042553) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 54380 + ... + 56720.

It is an arithmetic number, because the mean of its divisors is an integer number (5554053).

Almost surely, 2130042550 is an apocalyptic number.

130042550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130042550 is an abundant number, since it is smaller than the sum of its proper divisors (136551994).

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

130042550 is a wasteful number, since it uses less digits than its factorization.

130042550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 130042550 is about 11403.6200392682. The cubic root of 130042550 is about 506.6349650256.

Adding to 130042550 its reverse (55240031), we get a palindrome (185282581).

The spelling of 130042550 in words is "one hundred thirty million, forty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 101 110 202 275 505 550 1010 1111 2222 2341 2525 4682 5050 5555 11110 11705 23410 25751 27775 51502 55550 58525 117050 128755 236441 257510 472882 643775 1182205 1287550 2364410 2600851 5201702 5911025 11822050 13004255 26008510 65021275 130042550