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30122 = 215061
BaseRepresentation
bin111010110101010
31112022122
413112222
51430442
6351242
7153551
oct72652
945278
1030122
11206a4
1215522
1310931
14ad98
158dd2
hex75aa

30122 has 4 divisors (see below), whose sum is σ = 45186. Its totient is φ = 15060.

The previous prime is 30119. The next prime is 30133. The reversal of 30122 is 22103.

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., 22201 + 7921 = 149^2 + 89^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7529 + ... + 7532.

230122 is an apocalyptic number.

30122 is a deficient number, since it is larger than the sum of its proper divisors (15064).

30122 is a wasteful number, since it uses less digits than its factorization.

30122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15063.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30122 is about 173.5569070939. The cubic root of 30122 is about 31.1143883547.

Adding to 30122 its reverse (22103), we get a palindrome (52225).

It can be divided in two parts, 301 and 22, that added together give a palindrome (323).

The spelling of 30122 in words is "thirty thousand, one hundred twenty-two".

Divisors: 1 2 15061 30122