Search a number
-
+
30502013 = 476110639
BaseRepresentation
bin111010001011…
…0110001111101
32010101122220012
41310112301331
530302031023
63005433005
7520156103
oct164266175
963348805
1030502013
1116243683
12a26b765
13641c639
14409dc73
152a27978
hex1d16c7d

30502013 has 8 divisors (see below), whose sum is σ = 31664640. Its totient is φ = 29360880.

The previous prime is 30502009. The next prime is 30502019. The reversal of 30502013 is 31020503.

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 30502013 - 22 = 30502009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30502019) 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, 2453 + ... + 8186.

It is an arithmetic number, because the mean of its divisors is an integer number (3958080).

Almost surely, 230502013 is an apocalyptic number.

It is an amenable number.

30502013 is a deficient number, since it is larger than the sum of its proper divisors (1162627).

30502013 is a wasteful number, since it uses less digits than its factorization.

30502013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10747.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 30502013 is about 5522.8627540434. The cubic root of 30502013 is about 312.4468620048.

Adding to 30502013 its reverse (31020503), we get a palindrome (61522516).

The spelling of 30502013 in words is "thirty million, five hundred two thousand, thirteen".

Divisors: 1 47 61 2867 10639 500033 648979 30502013