Search a number
-
+
30103113 = 3232931489
BaseRepresentation
bin111001011010…
…1011001001001
32002122101201010
41302311121021
530201244423
62553114133
7513605115
oct162653111
962571633
1030103113
1115aa0a07
12a0b8949
13630cbc1
143dd8745
152999693
hex1cb5649

30103113 has 16 divisors (see below), whose sum is σ = 42053760. Its totient is φ = 19117824.

The previous prime is 30103111. The next prime is 30103123. The reversal of 30103113 is 31130103.

It is not a de Polignac number, because 30103113 - 21 = 30103111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30103111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19473 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (2628360).

Almost surely, 230103113 is an apocalyptic number.

It is an amenable number.

30103113 is a deficient number, since it is larger than the sum of its proper divisors (11950647).

30103113 is a wasteful number, since it uses less digits than its factorization.

30103113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 30103113 is about 5486.6303866763. The cubic root of 30103113 is about 311.0788391364.

Adding to 30103113 its reverse (31130103), we get a palindrome (61233216).

The spelling of 30103113 in words is "thirty million, one hundred three thousand, one hundred thirteen".

Divisors: 1 3 23 69 293 879 1489 4467 6739 20217 34247 102741 436277 1308831 10034371 30103113