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19095982490 = 25131933123357
BaseRepresentation
bin10001110010001101…
…011001000110011010
31211021211110102100202
4101302031121012122
5303102032414430
612434513102202
71244134113224
oct216215310632
954254412322
1019095982490
11810a203312
12384b257962
131a54305730
14cd2201414
1576b6e8d45
hex47235919a

19095982490 has 64 divisors (see below), whose sum is σ = 39084474240. Its totient is φ = 6659262720.

The previous prime is 19095982487. The next prime is 19095982519. The reversal of 19095982490 is 9428959091.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805892 + ... + 829248.

It is an arithmetic number, because the mean of its divisors is an integer number (610694910).

Almost surely, 219095982490 is an apocalyptic number.

19095982490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19095982490 is an abundant number, since it is smaller than the sum of its proper divisors (19988491750).

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

19095982490 is a wasteful number, since it uses less digits than its factorization.

19095982490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23727.

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 19095982490 in words is "nineteen billion, ninety-five million, nine hundred eighty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 331 494 662 1235 1655 2470 3310 4303 6289 8606 12578 21515 23357 31445 43030 46714 62890 81757 116785 163514 233570 303641 408785 443783 607282 817570 887566 1518205 2218915 3036410 4437830 5769179 7731167 11538358 15462334 28845895 38655835 57691790 77311670 100505171 146892173 201010342 293784346 502525855 734460865 1005051710 1468921730 1909598249 3819196498 9547991245 19095982490