Search a number
-
+
30503245 = 548712527
BaseRepresentation
bin111010001011…
…1000101001101
32010101201120211
41310113011031
530302100440
63005442421
7520162513
oct164270515
963351524
1030503245
11162445a3
12a270411
136420076
1440a04b3
152a27eea
hex1d1714d

30503245 has 8 divisors (see below), whose sum is σ = 36681984. Its totient is φ = 24350544.

The previous prime is 30503197. The next prime is 30503251. The reversal of 30503245 is 54230503.

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 30503245 - 213 = 30495053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (4585248).

Almost surely, 230503245 is an apocalyptic number.

It is an amenable number.

30503245 is a deficient number, since it is larger than the sum of its proper divisors (6178739).

30503245 is a wasteful number, since it uses less digits than its factorization.

30503245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 30503245 is about 5522.9742892757. The cubic root of 30503245 is about 312.4510686054.

Adding to 30503245 its reverse (54230503), we get a palindrome (84733748).

The spelling of 30503245 in words is "thirty million, five hundred three thousand, two hundred forty-five".

Divisors: 1 5 487 2435 12527 62635 6100649 30503245