Search a number
-
+
30660413 = 74380059
BaseRepresentation
bin111010011110…
…1011100111101
32010200201011212
41310331130331
530322113123
63013054205
7521415650
oct164753475
963621155
1030660413
1116341693
12a327365
136476774
144101897
152a59878
hex1d3d73d

30660413 has 4 divisors (see below), whose sum is σ = 35040480. Its totient is φ = 26280348.

The previous prime is 30660407. The next prime is 30660431. The reversal of 30660413 is 31406603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30660413 - 26 = 30660349 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 (30660313) 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, 2190023 + ... + 2190036.

It is an arithmetic number, because the mean of its divisors is an integer number (8760120).

Almost surely, 230660413 is an apocalyptic number.

It is an amenable number.

30660413 is a deficient number, since it is larger than the sum of its proper divisors (4380067).

30660413 is an equidigital number, since it uses as much as digits as its factorization.

30660413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380066.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30660413 is about 5537.1845734091. The cubic root of 30660413 is about 312.9867843774.

The spelling of 30660413 in words is "thirty million, six hundred sixty thousand, four hundred thirteen".

Divisors: 1 7 4380059 30660413