Search a number
-
+
30310012 = 2243176221
BaseRepresentation
bin111001110011…
…1111001111100
32010000220112001
41303213321330
530224410022
63001352044
7515426245
oct163477174
963026461
1030310012
11161223a7
12a198624
136383125
14404dccc
1529dab27
hex1ce7e7c

30310012 has 12 divisors (see below), whose sum is σ = 54276376. Its totient is φ = 14802480.

The previous prime is 30310003. The next prime is 30310019. The reversal of 30310012 is 21001303.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310019) 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, 87939 + ... + 88282.

Almost surely, 230310012 is an apocalyptic number.

It is an amenable number.

30310012 is a deficient number, since it is larger than the sum of its proper divisors (23966364).

30310012 is a wasteful number, since it uses less digits than its factorization.

30310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176268 (or 176266 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30310012 is about 5505.4529332290. The cubic root of 30310012 is about 311.7898952529.

Adding to 30310012 its reverse (21001303), we get a palindrome (51311315).

The spelling of 30310012 in words is "thirty million, three hundred ten thousand, twelve".

Divisors: 1 2 4 43 86 172 176221 352442 704884 7577503 15155006 30310012