Search a number
-
+
30555434 = 2713167887
BaseRepresentation
bin111010010001…
…1110100101010
32010111101011202
41310203310222
530310233214
63010524202
7520500620
oct164436452
963441152
1030555434
111627a828
12a296662
13643aa50
1440b5510
152a386de
hex1d23d2a

30555434 has 16 divisors (see below), whose sum is σ = 56410368. Its totient is φ = 12087792.

The previous prime is 30555419. The next prime is 30555457. The reversal of 30555434 is 43455503.

It is a junction number, because it is equal to n+sod(n) for n = 30555397 and 30555406.

It is an unprimeable number.

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, 83762 + ... + 84125.

It is an arithmetic number, because the mean of its divisors is an integer number (3525648).

Almost surely, 230555434 is an apocalyptic number.

30555434 is a deficient number, since it is larger than the sum of its proper divisors (25854934).

30555434 is a wasteful number, since it uses less digits than its factorization.

30555434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167909.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 30555434 is about 5527.6969888010. The cubic root of 30555434 is about 312.6291613282.

The spelling of 30555434 in words is "thirty million, five hundred fifty-five thousand, four hundred thirty-four".

Divisors: 1 2 7 13 14 26 91 182 167887 335774 1175209 2182531 2350418 4365062 15277717 30555434