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30421034 = 279292339
BaseRepresentation
bin111010000001…
…1000000101010
32010020112210222
41310003000222
530241433114
63004010042
7516401030
oct164030052
963215728
1030421034
1116198856
12a230922
1363c1817
14407c550
152a0d98e
hex1d0302a

30421034 has 16 divisors (see below), whose sum is σ = 52228800. Its totient is φ = 13017984.

The previous prime is 30421031. The next prime is 30421051. The reversal of 30421034 is 43012403.

It is not an unprimeable number, because it can be changed into a prime (30421031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11837 + ... + 14175.

It is an arithmetic number, because the mean of its divisors is an integer number (3264300).

Almost surely, 230421034 is an apocalyptic number.

30421034 is a deficient number, since it is larger than the sum of its proper divisors (21807766).

30421034 is a wasteful number, since it uses less digits than its factorization.

30421034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30421034 is about 5515.5266294344. The cubic root of 30421034 is about 312.1701146045.

Adding to 30421034 its reverse (43012403), we get a palindrome (73433437).

The spelling of 30421034 in words is "thirty million, four hundred twenty-one thousand, thirty-four".

Divisors: 1 2 7 14 929 1858 2339 4678 6503 13006 16373 32746 2172931 4345862 15210517 30421034