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30013378 = 215006689
BaseRepresentation
bin111001001111…
…1011111000010
32002110211121121
41302133133002
530140412003
62551142454
7513052363
oct162373702
962424547
1030013378
1115a3a54a
12a074a2a
1362ab0c5
143db3b6a
15297ccbd
hex1c9f7c2

30013378 has 4 divisors (see below), whose sum is σ = 45020070. Its totient is φ = 15006688.

The previous prime is 30013351. The next prime is 30013391. The reversal of 30013378 is 87331003.

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., 25674489 + 4338889 = 5067^2 + 2083^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7503343 + ... + 7503346.

Almost surely, 230013378 is an apocalyptic number.

30013378 is a deficient number, since it is larger than the sum of its proper divisors (15006692).

30013378 is a wasteful number, since it uses less digits than its factorization.

30013378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15006691.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30013378 is about 5478.4466776633. The cubic root of 30013378 is about 310.7694310166.

The spelling of 30013378 in words is "thirty million, thirteen thousand, three hundred seventy-eight".

Divisors: 1 2 15006689 30013378