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78830706142 = 253743685907
BaseRepresentation
bin100100101101010101…
…1010001110111011110
321112110211212210101001
41021122223101313132
52242421130044032
6100114143340514
75460332642416
oct1113253216736
9245424783331
1078830706142
1130482973321
12133402b173a
137583b01b66
143b5b75d646
1520b59eb3e7
hex125aad1dde

78830706142 has 8 divisors (see below), whose sum is σ = 120477117096. Its totient is φ = 38671667112.

The previous prime is 78830706139. The next prime is 78830706169. The reversal of 78830706142 is 24160703887.

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 = 78830706092 and 78830706101.

It is a congruent number.

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, 371842848 + ... + 371843059.

It is an arithmetic number, because the mean of its divisors is an integer number (15059639637).

Almost surely, 278830706142 is an apocalyptic number.

78830706142 is a deficient number, since it is larger than the sum of its proper divisors (41646410954).

78830706142 is a wasteful number, since it uses less digits than its factorization.

78830706142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743685962.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 78830706142 in words is "seventy-eight billion, eight hundred thirty million, seven hundred six thousand, one hundred forty-two".

Divisors: 1 2 53 106 743685907 1487371814 39415353071 78830706142