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79380663 = 338516871
BaseRepresentation
bin1001011101101…
…00000010110111
312112100221210120
410232310002313
5130310140123
611513223023
71652503335
oct456640267
9175327716
1079380663
114089895a
1222701a73
13135a450b
14a784b55
156e802e3
hex4bb40b7

79380663 has 8 divisors (see below), whose sum is σ = 105883776. Its totient is φ = 52899000.

The previous prime is 79380661. The next prime is 79380673. The reversal of 79380663 is 36608397.

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

It is not a de Polignac number, because 79380663 - 21 = 79380661 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79380661) 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, 8118 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (13235472).

Almost surely, 279380663 is an apocalyptic number.

79380663 is a deficient number, since it is larger than the sum of its proper divisors (26503113).

79380663 is a wasteful number, since it uses less digits than its factorization.

79380663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 79380663 is about 8909.5826501582. The cubic root of 79380663 is about 429.7721219112.

The spelling of 79380663 in words is "seventy-nine million, three hundred eighty thousand, six hundred sixty-three".

Divisors: 1 3 3851 6871 11553 20613 26460221 79380663