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30434 = 215217
BaseRepresentation
bin111011011100010
31112202012
413123202
51433214
6352522
7154505
oct73342
945665
1030434
1120958
1215742
1310b11
14b13c
15903e
hex76e2

30434 has 4 divisors (see below), whose sum is σ = 45654. Its totient is φ = 15216.

The previous prime is 30431. The next prime is 30449. The reversal of 30434 is 43403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21025 + 9409 = 145^2 + 97^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607 + ... + 7610.

230434 is an apocalyptic number.

30434 is a deficient number, since it is larger than the sum of its proper divisors (15220).

30434 is a wasteful number, since it uses less digits than its factorization.

30434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15219.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30434 is about 174.4534321818. The cubic root of 30434 is about 31.2214459172.

Adding to 30434 its reverse (43403), we get a palindrome (73837).

It can be divided in two parts, 30 and 434, that added together give a palindrome (464).

The spelling of 30434 in words is "thirty thousand, four hundred thirty-four".

Divisors: 1 2 15217 30434