Search a number
-
+
30949922 = 215474961
BaseRepresentation
bin111011000010…
…0001000100010
32011020102022102
41312010020202
530410344142
63023210402
7524033003
oct166041042
964212272
1030949922
111651a153
12a446a02
136548483
1441791aa
152ab5532
hex1d84222

30949922 has 4 divisors (see below), whose sum is σ = 46424886. Its totient is φ = 15474960.

The previous prime is 30949903. The next prime is 30949937. The reversal of 30949922 is 22994903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22994903 = 70132803.

It can be written as a sum of positive squares in only one way, i.e., 29931841 + 1018081 = 5471^2 + 1009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7737479 + ... + 7737482.

Almost surely, 230949922 is an apocalyptic number.

30949922 is a deficient number, since it is larger than the sum of its proper divisors (15474964).

30949922 is a wasteful number, since it uses less digits than its factorization.

30949922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474963.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 30949922 is about 5563.2654080135. The cubic root of 30949922 is about 313.9688191684.

The spelling of 30949922 in words is "thirty million, nine hundred forty-nine thousand, nine hundred twenty-two".

Divisors: 1 2 15474961 30949922