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1988002852 = 221145181883
BaseRepresentation
bin111011001111110…
…1000010000100100
312010112210000020021
41312133220100210
513032412042402
6525133444524
7100156513453
oct16637502044
95115700207
101988002852
119301a2a70
12475940744
13258b36764
1414c054b9a
15b97e2d37
hex767e8424

1988002852 has 12 divisors (see below), whose sum is σ = 3795278256. Its totient is φ = 903637640.

The previous prime is 1988002843. The next prime is 1988002873. The reversal of 1988002852 is 2582008891.

It is a junction number, because it is equal to n+sod(n) for n = 1988002799 and 1988002808.

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, 22590898 + ... + 22590985.

It is an arithmetic number, because the mean of its divisors is an integer number (316273188).

Almost surely, 21988002852 is an apocalyptic number.

It is an amenable number.

1988002852 is a deficient number, since it is larger than the sum of its proper divisors (1807275404).

1988002852 is a wasteful number, since it uses less digits than its factorization.

1988002852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45181898 (or 45181896 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 1988002852 is about 44587.0256016254. The cubic root of 1988002852 is about 1257.3967525342.

The spelling of 1988002852 in words is "one billion, nine hundred eighty-eight million, two thousand, eight hundred fifty-two".

Divisors: 1 2 4 11 22 44 45181883 90363766 180727532 497000713 994001426 1988002852