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1988099230 = 2513131116741
BaseRepresentation
bin111011001111111…
…1111110010011110
312010112221220102211
41312133333302132
513032423133410
6525135511034
7100160364445
oct16637776236
95115856384
101988099230
11930259417
1247598847a
13258b6b5a0
1414c07bd5c
15b981168a
hex767ffc9e

1988099230 has 32 divisors (see below), whose sum is σ = 3883305888. Its totient is φ = 728457600.

The previous prime is 1988099203. The next prime is 1988099233. The reversal of 1988099230 is 329908891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988099233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41341 + ... + 75400.

It is an arithmetic number, because the mean of its divisors is an integer number (121353309).

Almost surely, 21988099230 is an apocalyptic number.

1988099230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1988099230 is a deficient number, since it is larger than the sum of its proper divisors (1895206658).

1988099230 is a wasteful number, since it uses less digits than its factorization.

1988099230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116892.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 1988099230 is about 44588.1063737854. The cubic root of 1988099230 is about 1257.4170716576.

The spelling of 1988099230 in words is "one billion, nine hundred eighty-eight million, ninety-nine thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 131 262 655 1310 1703 3406 8515 17030 116741 233482 583705 1167410 1517633 3035266 7588165 15176330 15293071 30586142 76465355 152930710 198809923 397619846 994049615 1988099230