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30068734 = 215034367
BaseRepresentation
bin111001010110…
…0111111111110
32002120122112211
41302230333332
530144144414
62552251034
7513402643
oct162547776
962518484
1030068734
1115a780a3
12a0a0a7a
1362ca367
143dc9dca
15298e3c4
hex1cacffe

30068734 has 4 divisors (see below), whose sum is σ = 45103104. Its totient is φ = 15034366.

The previous prime is 30068719. The next prime is 30068741. The reversal of 30068734 is 43786003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43786003 = 53826151.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 30068696 and 30068705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7517182 + ... + 7517185.

It is an arithmetic number, because the mean of its divisors is an integer number (11275776).

Almost surely, 230068734 is an apocalyptic number.

30068734 is a deficient number, since it is larger than the sum of its proper divisors (15034370).

30068734 is a wasteful number, since it uses less digits than its factorization.

30068734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15034369.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 30068734 is about 5483.4965122630. The cubic root of 30068734 is about 310.9603723939.

The spelling of 30068734 in words is "thirty million, sixty-eight thousand, seven hundred thirty-four".

Divisors: 1 2 15034367 30068734