Search a number
-
+
30438354 = 2310349253
BaseRepresentation
bin111010000011…
…1001111010010
32010021102120110
41310013033102
530243011404
63004222150
7516502362
oct164071722
963242513
1030438354
11161aa871
12a23a956
1363c967b
1440849a2
152a13b89
hex1d073d2

30438354 has 16 divisors (see below), whose sum is σ = 61468992. Its totient is φ = 10047408.

The previous prime is 30438349. The next prime is 30438391. The reversal of 30438354 is 45383403.

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, 24009 + ... + 25244.

It is an arithmetic number, because the mean of its divisors is an integer number (3841812).

Almost surely, 230438354 is an apocalyptic number.

30438354 is an abundant number, since it is smaller than the sum of its proper divisors (31030638).

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

30438354 is a wasteful number, since it uses less digits than its factorization.

30438354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49361.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 30438354 is about 5517.0965190035. The cubic root of 30438354 is about 312.2293473118.

The spelling of 30438354 in words is "thirty million, four hundred thirty-eight thousand, three hundred fifty-four".

Divisors: 1 2 3 6 103 206 309 618 49253 98506 147759 295518 5073059 10146118 15219177 30438354