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30134442 = 2313386339
BaseRepresentation
bin111001011110…
…1000010101010
32002200222200110
41302331002222
530203300232
62553515150
7514065342
oct162750252
962628613
1030134442
11160124a8
12a112ab6
136321240
144005d22
1529a3acc
hex1cbd0aa

30134442 has 16 divisors (see below), whose sum is σ = 64905120. Its totient is φ = 9272112.

The previous prime is 30134431. The next prime is 30134453. The reversal of 30134442 is 24443103.

It is an interprime number because it is at equal distance from previous prime (30134431) and next prime (30134453).

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, 193092 + ... + 193247.

It is an arithmetic number, because the mean of its divisors is an integer number (4056570).

Almost surely, 230134442 is an apocalyptic number.

30134442 is an abundant number, since it is smaller than the sum of its proper divisors (34770678).

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

30134442 is a wasteful number, since it uses less digits than its factorization.

30134442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386357.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30134442 is about 5489.4846752678. The cubic root of 30134442 is about 311.1867173484.

Adding to 30134442 its reverse (24443103), we get a palindrome (54577545).

It can be divided in two parts, 301 and 34442, that added together give a palindrome (34743).

The spelling of 30134442 in words is "thirty million, one hundred thirty-four thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 386339 772678 1159017 2318034 5022407 10044814 15067221 30134442