Search a number
-
+
30506034 = 2313391103
BaseRepresentation
bin111010001011…
…1110000110010
32010101212102010
41310113300302
530302143114
63005503350
7520203606
oct164276062
963355363
1030506034
11162466a9
12a271b56
136421410
1440a1506
152a28c59
hex1d17c32

30506034 has 16 divisors (see below), whose sum is σ = 65705472. Its totient is φ = 9386448.

The previous prime is 30506033. The next prime is 30506059. The reversal of 30506034 is 43060503.

It is a super-2 number, since 2×305060342 = 1861236220818312, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30506034.

It is not an unprimeable number, because it can be changed into a prime (30506033) 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 7 ways as a sum of consecutive naturals, for example, 195474 + ... + 195629.

It is an arithmetic number, because the mean of its divisors is an integer number (4106592).

Almost surely, 230506034 is an apocalyptic number.

30506034 is an abundant number, since it is smaller than the sum of its proper divisors (35199438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30506034 is a wasteful number, since it uses less digits than its factorization.

30506034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391121.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30506034 is about 5523.2267742688. The cubic root of 30506034 is about 312.4605910837.

Adding to 30506034 its reverse (43060503), we get a palindrome (73566537).

The spelling of 30506034 in words is "thirty million, five hundred six thousand, thirty-four".

Divisors: 1 2 3 6 13 26 39 78 391103 782206 1173309 2346618 5084339 10168678 15253017 30506034