Search a number
-
+
30120132443 = 61864157143
BaseRepresentation
bin11100000011010011…
…001011111101011011
32212202010100021002212
4130003103023331123
5443141223214233
621500442545335
72114255621132
oct340323137533
985663307085
1030120132443
1111857036345
125a0720824b
132ac023739b
14165a39a919
15bb4458a48
hex7034cbf5b

30120132443 has 8 divisors (see below), whose sum is σ = 30617983776. Its totient is φ = 29622412800.

The previous prime is 30120132431. The next prime is 30120132467. The reversal of 30120132443 is 34423102103.

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

It is a cyclic number.

It is not a de Polignac number, because 30120132443 - 232 = 25825165147 is a prime.

It is a super-2 number, since 2×301201324432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120132403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498530 + ... + 555672.

It is an arithmetic number, because the mean of its divisors is an integer number (3827247972).

Almost surely, 230120132443 is an apocalyptic number.

30120132443 is a deficient number, since it is larger than the sum of its proper divisors (497851333).

30120132443 is an equidigital number, since it uses as much as digits as its factorization.

30120132443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65845.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30120132443 its reverse (34423102103), we get a palindrome (64543234546).

The spelling of 30120132443 in words is "thirty billion, one hundred twenty million, one hundred thirty-two thousand, four hundred forty-three".

Divisors: 1 61 8641 57143 527101 3485723 493772663 30120132443