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2803029986 = 21923882313
BaseRepresentation
bin1010011100010010…
…1101011111100010
321020100101200021102
42213010231133202
521220033424421
61142050354402
7126314235041
oct24704553742
97210350242
102803029986
111209267a09
1266288ba02
1335894b433
141c83b2558
1511613760b
hexa712d7e2

2803029986 has 12 divisors (see below), whose sum is σ = 4437484902. Its totient is φ = 1327750704.

The previous prime is 2803029961. The next prime is 2803030007. The reversal of 2803029986 is 6899203082.

It can be written as a sum of positive squares in only one way, i.e., 2633639761 + 169390225 = 51319^2 + 13015^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2803029986.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1940435 + ... + 1941878.

Almost surely, 22803029986 is an apocalyptic number.

2803029986 is a deficient number, since it is larger than the sum of its proper divisors (1634454916).

2803029986 is a wasteful number, since it uses less digits than its factorization.

2803029986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882353 (or 3882334 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2803029986 is about 52943.6491564380. The cubic root of 2803029986 is about 1409.9679730498.

The spelling of 2803029986 in words is "two billion, eight hundred three million, twenty-nine thousand, nine hundred eighty-six".

Divisors: 1 2 19 38 361 722 3882313 7764626 73763947 147527894 1401514993 2803029986