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78030794 = 2113379911
BaseRepresentation
bin1001010011010…
…10011111001010
312102211101010102
410221222133022
5124433441134
611424245402
71635152012
oct451523712
9172741112
1078030794
1140056766
1222170862
1313220c8a
14a512c42
156cb537e
hex4a6a7ca

78030794 has 16 divisors (see below), whose sum is σ = 118523520. Its totient is φ = 38525760.

The previous prime is 78030791. The next prime is 78030809. The reversal of 78030794 is 49703087.

It is not an unprimeable number, because it can be changed into a prime (78030791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85199 + ... + 86109.

It is an arithmetic number, because the mean of its divisors is an integer number (7407720).

Almost surely, 278030794 is an apocalyptic number.

78030794 is a deficient number, since it is larger than the sum of its proper divisors (40492726).

78030794 is a wasteful number, since it uses less digits than its factorization.

78030794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78030794 is about 8833.5040612432. The cubic root of 78030794 is about 427.3220882299.

The spelling of 78030794 in words is "seventy-eight million, thirty thousand, seven hundred ninety-four".

Divisors: 1 2 113 226 379 758 911 1822 42827 85654 102943 205886 345269 690538 39015397 78030794