Search a number
-
+
155330105305 = 5119243260527
BaseRepresentation
bin1001000010101001100…
…1010100111111011001
3112211221012222220210011
42100222121110333121
510021104001332210
6155205131121521
714136140052604
oct2205231247731
9484835886704
10155330105305
115a969882161
122612b8a32a1
1311855919a1b
14773762133b
1540919ded8a
hex242a654fd9

155330105305 has 8 divisors (see below), whose sum is σ = 186398404992. Its totient is φ = 124262565168.

The previous prime is 155330105269. The next prime is 155330105321. The reversal of 155330105305 is 503501033551.

It is a happy number.

155330105305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155330105305 - 213 = 155330097113 is a prime.

It is a super-2 number, since 2×1553301053052 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465952 + ... + 726478.

It is an arithmetic number, because the mean of its divisors is an integer number (23299800624).

Almost surely, 2155330105305 is an apocalyptic number.

It is an amenable number.

155330105305 is a deficient number, since it is larger than the sum of its proper divisors (31068299687).

155330105305 is a wasteful number, since it uses less digits than its factorization.

155330105305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379775.

The product of its (nonzero) digits is 16875, while the sum is 31.

Adding to 155330105305 its reverse (503501033551), we get a palindrome (658831138856).

The spelling of 155330105305 in words is "one hundred fifty-five billion, three hundred thirty million, one hundred five thousand, three hundred five".

Divisors: 1 5 119243 260527 596215 1302635 31066021061 155330105305