Search a number
-
+
30443705 = 531593329
BaseRepresentation
bin111010000100…
…0100010111001
32010021200220122
41310020202321
530243144310
63004303025
7516524105
oct164104271
963250818
1030443705
1116203896
12a241a75
1363cbc36
144086905
152a15555
hex1d088b9

30443705 has 16 divisors (see below), whose sum is σ = 38361600. Its totient is φ = 23162880.

The previous prime is 30443671. The next prime is 30443717. The reversal of 30443705 is 50734403.

30443705 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 30443705 - 212 = 30439609 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7481 + ... + 10809.

It is an arithmetic number, because the mean of its divisors is an integer number (2397600).

Almost surely, 230443705 is an apocalyptic number.

It is an amenable number.

30443705 is a deficient number, since it is larger than the sum of its proper divisors (7917895).

30443705 is a wasteful number, since it uses less digits than its factorization.

30443705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30443705 is about 5517.5814447999. The cubic root of 30443705 is about 312.2476426653.

The spelling of 30443705 in words is "thirty million, four hundred forty-three thousand, seven hundred five".

Divisors: 1 5 31 59 155 295 1829 3329 9145 16645 103199 196411 515995 982055 6088741 30443705