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19792149120 = 27345381793
BaseRepresentation
bin10010011011101101…
…000011101010000000
31220002100102100110000
4102123231003222000
5311013242232440
613031542240000
71300316330442
oct223355035200
956070370400
1019792149120
118437174637
123a04426000
131b35602053
14d5a85c492
157ac8b0730
hex49bb43a80

19792149120 has 160 divisors (see below), whose sum is σ = 70681523220. Its totient is φ = 5277892608.

The previous prime is 19792149119. The next prime is 19792149133. The reversal of 19792149120 is 2194129791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19772859456 + 19289664 = 140616^2 + 4392^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 139057 + ... + 242736.

Almost surely, 219792149120 is an apocalyptic number.

19792149120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19792149120 is an abundant number, since it is smaller than the sum of its proper divisors (50889374100).

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

19792149120 is an equidigital number, since it uses as much as digits as its factorization.

19792149120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381824 (or 381803 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 19792149120 in words is "nineteen billion, seven hundred ninety-two million, one hundred forty-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 270 288 320 324 360 384 405 432 480 540 576 640 648 720 810 864 960 1080 1152 1296 1440 1620 1728 1920 2160 2592 2880 3240 3456 4320 5184 5760 6480 8640 10368 12960 17280 25920 51840 381793 763586 1145379 1527172 1908965 2290758 3054344 3436137 3817930 4581516 5726895 6108688 6872274 7635860 9163032 10308411 11453790 12217376 13744548 15271720 17180685 18326064 20616822 22907580 24434752 27489096 30543440 30925233 34361370 36652128 41233644 45815160 48869504 51542055 54978192 61086880 61850466 68722740 73304256 82467288 91630320 103084110 109956384 122173760 123700932 137445480 146608512 154626165 164934576 183260640 206168220 219912768 244347520 247401864 274890960 309252330 329869152 366521280 412336440 439825536 494803728 549781920 618504660 659738304 733042560 824672880 989607456 1099563840 1237009320 1319476608 1649345760 1979214912 2199127680 2474018640 3298691520 3958429824 4948037280 6597383040 9896074560 19792149120