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20483494080 = 263573048139
BaseRepresentation
bin10011000100111010…
…010101000011000000
31221212112022022102220
4103010322111003000
5313422233302310
613224320211040
71323412553430
oct230472250300
957775268386
1020483494080
118761442305
123b77a69a80
131c15900aca
14dc45c22c0
157ed423670
hex4c4e950c0

20483494080 has 112 divisors (see below), whose sum is σ = 74325845760. Its totient is φ = 4681939968.

The previous prime is 20483493983. The next prime is 20483494093. The reversal of 20483494080 is 8049438402.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1517350 + ... + 1530789.

Almost surely, 220483494080 is an apocalyptic number.

20483494080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20483494080 is an abundant number, since it is smaller than the sum of its proper divisors (53842351680).

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

20483494080 is a wasteful number, since it uses less digits than its factorization.

20483494080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048166 (or 3048156 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 20483494080 in words is "twenty billion, four hundred eighty-three million, four hundred ninety-four thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 140 160 168 192 210 224 240 280 320 336 420 448 480 560 672 840 960 1120 1344 1680 2240 3360 6720 3048139 6096278 9144417 12192556 15240695 18288834 21336973 24385112 30481390 36577668 42673946 45722085 48770224 60962780 64010919 73155336 85347892 91444170 97540448 106684865 121925560 128021838 146310672 170695784 182888340 195080896 213369730 243851120 256043676 292621344 320054595 341391568 365776680 426739460 487702240 512087352 585242688 640109190 682783136 731553360 853478920 975404480 1024174704 1280218380 1365566272 1463106720 1706957840 2048349408 2560436760 2926213440 3413915680 4096698816 5120873520 6827831360 10241747040 20483494080