Search a number
-
+
30310312245 = 354225747819
BaseRepresentation
bin11100001110101000…
…101010100100110101
32220020101012101202020
4130032220222210311
5444033414442440
621531355103353
72122055255163
oct341650524465
986211171666
1030310312245
1111944421234
125a5aa41b59
132b20763905
141677744233
15bc5ec33d0
hex70ea2a935

30310312245 has 16 divisors (see below), whose sum is σ = 48498661440. Its totient is φ = 16164779264.

The previous prime is 30310312243. The next prime is 30310312289. The reversal of 30310312245 is 54221301303.

It is a cyclic number.

It is not a de Polignac number, because 30310312245 - 21 = 30310312243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609946 + ... + 657764.

It is an arithmetic number, because the mean of its divisors is an integer number (3031166340).

Almost surely, 230310312245 is an apocalyptic number.

It is an amenable number.

30310312245 is a deficient number, since it is larger than the sum of its proper divisors (18188349195).

30310312245 is a wasteful number, since it uses less digits than its factorization.

30310312245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90084.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 30310312245 its reverse (54221301303), we get a palindrome (84531613548).

The spelling of 30310312245 in words is "thirty billion, three hundred ten million, three hundred twelve thousand, two hundred forty-five".

Divisors: 1 3 5 15 42257 47819 126771 143457 211285 239095 633855 717285 2020687483 6062062449 10103437415 30310312245