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80478178354 = 275748441311
BaseRepresentation
bin100101011110011011…
…1111000110000110010
321200201122220001101101
41022330313320300302
52304304403201404
6100545434355014
75546216141410
oct1127467706062
9250648801341
1080478178354
1131148919602
121371bb8ba6a
1377872195a2
143c764902b0
1521604762a4
hex12bcdf8c32

80478178354 has 8 divisors (see below), whose sum is σ = 137962591488. Its totient is φ = 34490647860.

The previous prime is 80478178301. The next prime is 80478178367. The reversal of 80478178354 is 45387187408.

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

It is a junction number, because it is equal to n+sod(n) for n = 80478178295 and 80478178304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2874220642 + ... + 2874220669.

It is an arithmetic number, because the mean of its divisors is an integer number (17245323936).

Almost surely, 280478178354 is an apocalyptic number.

80478178354 is a deficient number, since it is larger than the sum of its proper divisors (57484413134).

80478178354 is a wasteful number, since it uses less digits than its factorization.

80478178354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748441320.

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 80478178354 in words is "eighty billion, four hundred seventy-eight million, one hundred seventy-eight thousand, three hundred fifty-four".

Divisors: 1 2 7 14 5748441311 11496882622 40239089177 80478178354