Search a number
-
+
30013103 = 191579637
BaseRepresentation
bin111001001111…
…1011010101111
32002110211020102
41302133122233
530140404403
62551141315
7513051521
oct162373257
962424212
1030013103
1115a3a31a
12a07483b
1362aac43
143db3a11
15297cb88
hex1c9f6af

30013103 has 4 divisors (see below), whose sum is σ = 31592760. Its totient is φ = 28433448.

The previous prime is 30013063. The next prime is 30013111. The reversal of 30013103 is 30131003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30013103 is a prime.

It is a super-3 number, since 3×300131033 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013133) 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 3 ways as a sum of consecutive naturals, for example, 789800 + ... + 789837.

It is an arithmetic number, because the mean of its divisors is an integer number (7898190).

Almost surely, 230013103 is an apocalyptic number.

30013103 is a deficient number, since it is larger than the sum of its proper divisors (1579657).

30013103 is a wasteful number, since it uses less digits than its factorization.

30013103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579656.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 30013103 is about 5478.4215792507. The cubic root of 30013103 is about 310.7684818637.

Adding to 30013103 its reverse (30131003), we get a palindrome (60144106).

The spelling of 30013103 in words is "thirty million, thirteen thousand, one hundred three".

Divisors: 1 19 1579637 30013103