Search a number
-
+
130333481 = 296343987
BaseRepresentation
bin1111100010010…
…11101100101001
3100002020121220222
413301023230221
5231331132411
620533255425
73141546665
oct761135451
9302217828
10130333481
116762a523
1237794575
1321004505
14134498a5
15b6974db
hex7c4bb29

130333481 has 4 divisors (see below), whose sum is σ = 130380432. Its totient is φ = 130286532.

The previous prime is 130333457. The next prime is 130333487. The reversal of 130333481 is 184333031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184333031 = 727253553.

It is a cyclic number.

It is not a de Polignac number, because 130333481 - 222 = 126139177 is a prime.

It is a super-2 number, since 2×1303334812 = 33973632539154722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130333481.

It is not an unprimeable number, because it can be changed into a prime (130333487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19031 + ... + 24956.

It is an arithmetic number, because the mean of its divisors is an integer number (32595108).

Almost surely, 2130333481 is an apocalyptic number.

It is an amenable number.

130333481 is a deficient number, since it is larger than the sum of its proper divisors (46951).

130333481 is an equidigital number, since it uses as much as digits as its factorization.

130333481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46950.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 130333481 is about 11416.3689936862. The cubic root of 130333481 is about 507.0124979575.

The spelling of 130333481 in words is "one hundred thirty million, three hundred thirty-three thousand, four hundred eighty-one".

Divisors: 1 2963 43987 130333481