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17872084216 = 237714494991
BaseRepresentation
bin10000101001010000…
…100101110011111000
31201010112110221120001
4100221100211303320
5243100223143331
612113232442344
71201613131540
oct205120456370
951115427501
1017872084216
117641364438
1235693a93b4
1318ba89467c
14c17850320
156e903c561
hex429425cf8

17872084216 has 32 divisors (see below), whose sum is σ = 38836730880. Its totient is φ = 7551583200.

The previous prime is 17872084141. The next prime is 17872084313. The reversal of 17872084216 is 61248027871.

It is a super-2 number, since 2×178720842162 (a number of 21 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 7 ways as a sum of consecutive naturals, for example, 2243520 + ... + 2251471.

It is an arithmetic number, because the mean of its divisors is an integer number (1213647840).

Almost surely, 217872084216 is an apocalyptic number.

It is an amenable number.

17872084216 is an abundant number, since it is smaller than the sum of its proper divisors (20964646664).

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

17872084216 is a wasteful number, since it uses less digits than its factorization.

17872084216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495075 (or 4495071 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 17872084216 in words is "seventeen billion, eight hundred seventy-two million, eighty-four thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 28 56 71 142 284 497 568 994 1988 3976 4494991 8989982 17979964 31464937 35959928 62929874 125859748 251719496 319144361 638288722 1276577444 2234010527 2553154888 4468021054 8936042108 17872084216