Search a number
-
+
30313053 = 323368117
BaseRepresentation
bin111001110100…
…0101001011101
32010001001200200
41303220221131
530230004203
63001414113
7515441151
oct163505135
963031620
1030313053
1116124711
12a19a339
136384624
144051061
1529db9a3
hex1ce8a5d

30313053 has 6 divisors (see below), whose sum is σ = 43785534. Its totient is φ = 20208696.

The previous prime is 30313043. The next prime is 30313069. The reversal of 30313053 is 35031303.

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 14607684 = 3963^2 + 3822^2 .

It is a de Polignac number, because none of the positive numbers 2k-30313053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1684050 + ... + 1684067.

It is an arithmetic number, because the mean of its divisors is an integer number (7297589).

Almost surely, 230313053 is an apocalyptic number.

It is an amenable number.

30313053 is a deficient number, since it is larger than the sum of its proper divisors (13472481).

30313053 is a wasteful number, since it uses less digits than its factorization.

30313053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368123 (or 3368120 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 18.

The square root of 30313053 is about 5505.7291070302. The cubic root of 30313053 is about 311.8003221855.

Adding to 30313053 its reverse (35031303), we get a palindrome (65344356).

It can be divided in two parts, 3031 and 3053, that added together give a square (6084 = 782).

The spelling of 30313053 in words is "thirty million, three hundred thirteen thousand, fifty-three".

Divisors: 1 3 9 3368117 10104351 30313053