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216196102345820 = 225727101159146987
BaseRepresentation
bin110001001010000100010011…
…111000011101010001011100
31001100111010221002120012102012
4301022010103320131101130
5211314124104200031240
62043451041315250352
763352436646636122
oct6112042370352134
91040433832505365
10216196102345820
116298328560a713
12202b83052a99b8
13938328842a0bc
143b55d39111912
1519edb54133b65
hexc4a113e1d45c

216196102345820 has 48 divisors (see below), whose sum is σ = 454643902702080. Its totient is φ = 86358047248704.

The previous prime is 216196102345819. The next prime is 216196102345837. The reversal of 216196102345820 is 28543201691612.

It is a super-2 number, since 2×2161961023458202 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470778367 + ... + 1470925353.

It is an arithmetic number, because the mean of its divisors is an integer number (9471747972960).

Almost surely, 2216196102345820 is an apocalyptic number.

216196102345820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216196102345820 is an abundant number, since it is smaller than the sum of its proper divisors (238447800356260).

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

216196102345820 is a wasteful number, since it uses less digits than its factorization.

216196102345820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248882 (or 248880 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 216196102345820 in words is "two hundred sixteen trillion, one hundred ninety-six billion, one hundred two million, three hundred forty-five thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 727 1454 2908 3635 7270 14540 101159 146987 202318 293974 404636 505795 587948 734935 1011590 1469870 2023180 2939740 73542593 106859549 147085186 213719098 294170372 367712965 427438196 534297745 735425930 1068595490 1470851860 2137190980 14869057933 29738115866 59476231732 74345289665 148690579330 297381158660 10809805117291 21619610234582 43239220469164 54049025586455 108098051172910 216196102345820