Search a number
-
+
30358242 = 2321686569
BaseRepresentation
bin111001111001…
…1101011100010
32010010100200100
41303303223202
530232430432
63002403230
7516016665
oct163635342
963110610
1030358242
1116155662
12a200516
13639c075
1440636dc
1529ea07c
hex1cf3ae2

30358242 has 12 divisors (see below), whose sum is σ = 65776230. Its totient is φ = 10119408.

The previous prime is 30358231. The next prime is 30358247. The reversal of 30358242 is 24285303.

It can be written as a sum of positive squares in only one way, i.e., 19527561 + 10830681 = 4419^2 + 3291^2 .

It is not an unprimeable number, because it can be changed into a prime (30358247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 843267 + ... + 843302.

Almost surely, 230358242 is an apocalyptic number.

30358242 is an abundant number, since it is smaller than the sum of its proper divisors (35417988).

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

30358242 is a wasteful number, since it uses less digits than its factorization.

30358242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686577 (or 1686574 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 30358242 is about 5509.8313948795. The cubic root of 30358242 is about 311.9551834049.

The spelling of 30358242 in words is "thirty million, three hundred fifty-eight thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 1686569 3373138 5059707 10119414 15179121 30358242