[go: up one dir, main page]

Search a number
-
+
130530518 = 271919229
BaseRepresentation
bin1111100011110…
…11110011010110
3100002121122012122
413301323303112
5231403434033
620541415542
73143330306
oct761736326
9302548178
10130530518
1167754568
123786a5b2
13210730c1
141349b606
15b6d5a98
hex7c7bcd6

130530518 has 8 divisors (see below), whose sum is σ = 198553680. Its totient is φ = 64345960.

The previous prime is 130530493. The next prime is 130530541. The reversal of 130530518 is 815035031.

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

It is a super-2 number, since 2×1305305182 = 34076432258696648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459473 + ... + 459756.

It is an arithmetic number, because the mean of its divisors is an integer number (24819210).

Almost surely, 2130530518 is an apocalyptic number.

130530518 is a deficient number, since it is larger than the sum of its proper divisors (68023162).

130530518 is an equidigital number, since it uses as much as digits as its factorization.

130530518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919302.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 130530518 is about 11424.9953172857. The cubic root of 130530518 is about 507.2678683102.

Adding to 130530518 its reverse (815035031), we get a palindrome (945565549).

The spelling of 130530518 in words is "one hundred thirty million, five hundred thirty thousand, five hundred eighteen".

Divisors: 1 2 71 142 919229 1838458 65265259 130530518