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19127900160 = 211325207551
BaseRepresentation
bin10001110100000111…
…001001100000000000
31211101001112000011200
4101310013021200000
5303133220301120
612442013141200
71245002316525
oct216407114000
954331460150
1019127900160
118126223556
123859a8a800
131a5aacc525
14cd654d14c
1576e400e90
hex4741c9800

19127900160 has 144 divisors (see below), whose sum is σ = 66294184320. Its totient is φ = 5100748800.

The previous prime is 19127900131. The next prime is 19127900161. The reversal of 19127900160 is 6100972191.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19127900161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11616 + ... + 195935.

It is an arithmetic number, because the mean of its divisors is an integer number (460376280).

Almost surely, 219127900160 is an apocalyptic number.

19127900160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19127900160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33147092160).

19127900160 is an abundant number, since it is smaller than the sum of its proper divisors (47166284160).

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

19127900160 is a wasteful number, since it uses less digits than its factorization.

19127900160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207584 (or 207561 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The spelling of 19127900160 in words is "nineteen billion, one hundred twenty-seven million, nine hundred thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 576 640 720 768 960 1024 1152 1280 1440 1536 1920 2048 2304 2560 2880 3072 3840 4608 5120 5760 6144 7680 9216 10240 11520 15360 18432 23040 30720 46080 92160 207551 415102 622653 830204 1037755 1245306 1660408 1867959 2075510 2490612 3113265 3320816 3735918 4151020 4981224 6226530 6641632 7471836 8302040 9339795 9962448 12453060 13283264 14943672 16604080 18679590 19924896 24906120 26566528 29887344 33208160 37359180 39849792 49812240 53133056 59774688 66416320 74718360 79699584 99624480 106266112 119549376 132832640 149436720 159399168 199248960 212532224 239098752 265665280 298873440 318798336 398497920 425064448 478197504 531330560 597746880 637596672 796995840 956395008 1062661120 1195493760 1275193344 1593991680 1912790016 2125322240 2390987520 3187983360 3825580032 4781975040 6375966720 9563950080 19127900160