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6980932978 = 241361723537
BaseRepresentation
bin1101000000001100…
…01001010101110010
3200000111212010202021
412200012021111302
5103244104323403
63112413342054
7334664644165
oct64006112562
920014763667
106980932978
112a626112a8
121429a9792a
1387338b396
144a31d5adc
152accee8bd
hex1a0189572

6980932978 has 16 divisors (see below), whose sum is σ = 10730220984. Its totient is φ = 3404247040.

The previous prime is 6980932969. The next prime is 6980932979. The reversal of 6980932978 is 8792390896.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1321831449 + 5659101529 = 36357^2 + 75227^2 .

It is not an unprimeable number, because it can be changed into a prime (6980932979) 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, 284826 + ... + 308362.

Almost surely, 26980932978 is an apocalyptic number.

6980932978 is a deficient number, since it is larger than the sum of its proper divisors (3749288006).

6980932978 is a wasteful number, since it uses less digits than its factorization.

6980932978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27197.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The square root of 6980932978 is about 83551.9777025056. The cubic root of 6980932978 is about 1911.1927509745.

The spelling of 6980932978 in words is "six billion, nine hundred eighty million, nine hundred thirty-two thousand, nine hundred seventy-eight".

Divisors: 1 2 41 82 3617 7234 23537 47074 148297 296594 965017 1930034 85133329 170266658 3490466489 6980932978