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16213966848 = 2153254979
BaseRepresentation
bin11110001100110110…
…11000000000000000
31112211222102212010200
433012123120000000
5231201233414343
611240521325200
71112540305242
oct170633300000
945758385120
1016213966848
1169703a8302
123186036800
1316b51c0831
14adb54c092
1564d6ad4d3
hex3c66d8000

16213966848 has 96 divisors (see below), whose sum is σ = 46840485900. Its totient is φ = 5404557312.

The previous prime is 16213966841. The next prime is 16213966891. The reversal of 16213966848 is 84866931261.

16213966848 is a `hidden beast` number, since 1 + 621 + 3 + 9 + 6 + 6 + 8 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16213966794 and 16213966803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213966841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267423 + ... + 322401.

Almost surely, 216213966848 is an apocalyptic number.

16213966848 is a gapful number since it is divisible by the number (18) 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 16213966848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23420242950).

16213966848 is an abundant number, since it is smaller than the sum of its proper divisors (30626519052).

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

16213966848 is an frugal number, since it uses more digits than its factorization.

16213966848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55015 (or 54984 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 16213966848 in words is "sixteen billion, two hundred thirteen million, nine hundred sixty-six thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1024 1152 1536 2048 2304 3072 4096 4608 6144 8192 9216 12288 16384 18432 24576 32768 36864 49152 54979 73728 98304 109958 147456 164937 219916 294912 329874 439832 494811 659748 879664 989622 1319496 1759328 1979244 2638992 3518656 3958488 5277984 7037312 7916976 10555968 14074624 15833952 21111936 28149248 31667904 42223872 56298496 63335808 84447744 112596992 126671616 168895488 225193984 253343232 337790976 450387968 506686464 675581952 900775936 1013372928 1351163904 1801551872 2026745856 2702327808 4053491712 5404655616 8106983424 16213966848