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78484929 = 339176679
BaseRepresentation
bin1001010110110…
…01010111000001
312110200110002020
410223121113001
5130043004204
611442112053
71642053015
oct453312701
9173613066
1078484929
1140336986
122234b629
131334c8b3
14a5d0545
156d54bd9
hex4ad95c1

78484929 has 8 divisors (see below), whose sum is σ = 104688960. Its totient is φ = 52302096.

The previous prime is 78484919. The next prime is 78484949. The reversal of 78484929 is 92948487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78484929 - 25 = 78484897 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78484919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8412 + ... + 15090.

It is an arithmetic number, because the mean of its divisors is an integer number (13086120).

Almost surely, 278484929 is an apocalyptic number.

It is an amenable number.

78484929 is a deficient number, since it is larger than the sum of its proper divisors (26204031).

78484929 is a wasteful number, since it uses less digits than its factorization.

78484929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599.

The product of its digits is 1161216, while the sum is 51.

The square root of 78484929 is about 8859.1720267754. The cubic root of 78484929 is about 428.1494823160.

The spelling of 78484929 in words is "seventy-eight million, four hundred eighty-four thousand, nine hundred twenty-nine".

Divisors: 1 3 3917 6679 11751 20037 26161643 78484929