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2980755686 = 22193767939
BaseRepresentation
bin1011000110101010…
…1011100011100110
321200201211002002202
42301222223203212
522101033140221
61211435534502
7133603001546
oct26152534346
97621732082
102980755686
11129a616957
126b22ba432
1338670707c
14203c37326
15126a41d0b
hexb1aab8e6

2980755686 has 8 divisors (see below), whose sum is σ = 4471403160. Its totient is φ = 1490287968.

The previous prime is 2980755683. The next prime is 2980755689. The reversal of 2980755686 is 6865570892.

It is an interprime number because it is at equal distance from previous prime (2980755683) and next prime (2980755689).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980755683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9905 + ... + 77843.

It is an arithmetic number, because the mean of its divisors is an integer number (558925395).

Almost surely, 22980755686 is an apocalyptic number.

2980755686 is a deficient number, since it is larger than the sum of its proper divisors (1490647474).

2980755686 is a wasteful number, since it uses less digits than its factorization.

2980755686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89878.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The square root of 2980755686 is about 54596.2973652976. The cubic root of 2980755686 is about 1439.1590521347.

The spelling of 2980755686 in words is "two billion, nine hundred eighty million, seven hundred fifty-five thousand, six hundred eighty-six".

Divisors: 1 2 21937 43874 67939 135878 1490377843 2980755686