[go: up one dir, main page]

Search a number
-
+
30000002 = 2173128463
BaseRepresentation
bin111001001110…
…0001110000010
32002110011021012
41302130032002
530140000002
62551000522
7512665364
oct162341602
962404235
1030000002
1115a3049a
12a069142
1362a4ca6
143dacd34
152978d52
hex1c9c382

30000002 has 16 divisors (see below), whose sum is σ = 49185792. Its totient is φ = 13661760.

The previous prime is 30000001. The next prime is 30000023. The reversal of 30000002 is 20000003.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13178 + ... + 15285.

It is an arithmetic number, because the mean of its divisors is an integer number (3074112).

Almost surely, 230000002 is an apocalyptic number.

30000002 is a deficient number, since it is larger than the sum of its proper divisors (19185790).

30000002 is a wasteful number, since it uses less digits than its factorization.

30000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28513.

The product of its (nonzero) digits is 6, while the sum is 5.

The square root of 30000002 is about 5477.2257576258. The cubic root of 30000002 is about 310.7232575003.

Adding to 30000002 its reverse (20000003), we get a palindrome (50000005).

Subtracting from 30000002 its reverse (20000003), we obtain a palindrome (9999999).

The spelling of 30000002 in words is "thirty million, two", and thus it is an aban number, an eban number, and an uban number.

Divisors: 1 2 17 31 34 62 527 1054 28463 56926 483871 882353 967742 1764706 15000001 30000002