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19824880080 = 2435179541853
BaseRepresentation
bin10010011101101001…
…111010100111010000
31220011122000020212210
4102131221322213100
5311100132130310
613035111552120
71301164462125
oct223551724720
956148006783
1019824880080
11845369a915
123a1338b640
131b3c322095
14d60d3c74c
157b06c8820
hex49da7a9d0

19824880080 has 160 divisors (see below), whose sum is σ = 61987282560. Its totient is φ = 5241231360.

The previous prime is 19824880067. The next prime is 19824880081. The reversal of 19824880080 is 8008842891.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19824880081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23240934 + ... + 23241786.

It is an arithmetic number, because the mean of its divisors is an integer number (387420516).

Almost surely, 219824880080 is an apocalyptic number.

19824880080 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 19824880080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30993641280).

19824880080 is an abundant number, since it is smaller than the sum of its proper divisors (42162402480).

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

19824880080 is a wasteful number, since it uses less digits than its factorization.

19824880080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The spelling of 19824880080 in words is "nineteen billion, eight hundred twenty-four million, eight hundred eighty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 179 240 358 537 541 716 853 895 1074 1082 1432 1623 1706 1790 2148 2164 2559 2685 2705 2864 3246 3412 3580 4265 4296 4328 5118 5370 5410 6492 6824 7160 8115 8530 8592 8656 10236 10740 10820 12795 12984 13648 14320 16230 17060 20472 21480 21640 25590 25968 32460 34120 40944 42960 43280 51180 64920 68240 96839 102360 129840 152687 193678 204720 290517 305374 387356 458061 461473 484195 581034 610748 763435 774712 916122 922946 968390 1162068 1221496 1384419 1452585 1526870 1549424 1832244 1845892 1936780 2290305 2307365 2324136 2442992 2768838 2905170 3053740 3664488 3691784 3873560 4580610 4614730 4648272 5537676 5810340 6107480 6922095 7328976 7383568 7747120 9161220 9229460 11075352 11620680 12214960 13844190 18322440 18458920 22150704 23241360 27688380 36644880 36917840 55376760 82603667 110753520 165207334 247811001 330414668 413018335 495622002 660829336 826036670 991244004 1239055005 1321658672 1652073340 1982488008 2478110010 3304146680 3964976016 4956220020 6608293360 9912440040 19824880080