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2996859780 = 2232516649221
BaseRepresentation
bin1011001010100000…
…0111001110000100
321201212010020202200
42302220013032010
522114144003110
61213213034500
7134156613345
oct26250071604
97655106680
102996859780
1112a8716122
126b7785a30
13389b55115
1420602a0cc
151281736c0
hexb2a07384

2996859780 has 36 divisors (see below), whose sum is σ = 9090475212. Its totient is φ = 799162560.

The previous prime is 2996859763. The next prime is 2996859799. The reversal of 2996859780 is 879586992.

It can be written as a sum of positive squares in 2 ways, for example, as 1982564676 + 1014295104 = 44526^2 + 31848^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×29968597803 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8324431 + ... + 8324790.

Almost surely, 22996859780 is an apocalyptic number.

2996859780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2996859780 is an abundant number, since it is smaller than the sum of its proper divisors (6093615432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2996859780 is a wasteful number, since it uses less digits than its factorization.

2996859780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16649236 (or 16649231 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The square root of 2996859780 is about 54743.5820895929. The cubic root of 2996859780 is about 1441.7461745200.

The spelling of 2996859780 in words is "two billion, nine hundred ninety-six million, eight hundred fifty-nine thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 16649221 33298442 49947663 66596884 83246105 99895326 149842989 166492210 199790652 249738315 299685978 332984420 499476630 599371956 749214945 998953260 1498429890 2996859780