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30944834 = 215472417
BaseRepresentation
bin111011000001…
…0111001000010
32011020011022222
41312002321002
530410213314
63023131042
7524012114
oct166027102
964204288
1030944834
1116516348
12a443a82
13654606b
1441773b4
152ab3c8e
hex1d82e42

30944834 has 4 divisors (see below), whose sum is σ = 46417254. Its totient is φ = 15472416.

The previous prime is 30944831. The next prime is 30944861. The reversal of 30944834 is 43844903.

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., 23088025 + 7856809 = 4805^2 + 2803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30944794 and 30944803.

It is not an unprimeable number, because it can be changed into a prime (30944831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7736207 + ... + 7736210.

Almost surely, 230944834 is an apocalyptic number.

30944834 is a deficient number, since it is larger than the sum of its proper divisors (15472420).

30944834 is a wasteful number, since it uses less digits than its factorization.

30944834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15472419.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 30944834 is about 5562.8081038267. The cubic root of 30944834 is about 313.9516132995.

The spelling of 30944834 in words is "thirty million, nine hundred forty-four thousand, eight hundred thirty-four".

Divisors: 1 2 15472417 30944834