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86172101205284 = 221223137335473617
BaseRepresentation
bin10011100101111110000001…
…011110110101110100100100
3102022002222020220011122102102
4103211332001132311310210
542243320430402032114
6503134530005431232
724102504666543563
oct2345760136656444
9368088226148372
1086172101205284
11255034236a0356
1297b889240b518
133910cc0569713
14173ca754dbbda
159e68029212de
hex4e5f817b5d24

86172101205284 has 48 divisors (see below), whose sum is σ = 151118754046848. Its totient is φ = 42995446760448.

The previous prime is 86172101205269. The next prime is 86172101205317. The reversal of 86172101205284 is 48250210127168.

It is a super-2 number, since 2×861721012052842 (a number of 29 digits) contains 22 as substring.

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, 23824189844 + ... + 23824193460.

It is an arithmetic number, because the mean of its divisors is an integer number (3148307375976).

Almost surely, 286172101205284 is an apocalyptic number.

It is an amenable number.

86172101205284 is a deficient number, since it is larger than the sum of its proper divisors (64946652841564).

86172101205284 is a wasteful number, since it uses less digits than its factorization.

86172101205284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764 (or 9762 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 86172101205284 in words is "eighty-six trillion, one hundred seventy-two billion, one hundred one million, two hundred five thousand, two hundred eighty-four".

Divisors: 1 2 4 1223 1373 2446 2746 3547 3617 4892 5492 7094 7234 14188 14468 1679179 3358358 4337981 4423591 4870031 4966141 6716716 8675962 8847182 9740062 9932282 12829499 17351924 17694364 19480124 19864564 25658998 51317996 5956047913 6073590443 11912095826 12147180886 15690477277 17614902127 23824191652 24294361772 31380954554 35229804254 62761909108 70459608508 21543025301321 43086050602642 86172101205284