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85270815588 = 223710315165269
BaseRepresentation
bin100111101101010001…
…0010110001101100100
322011002200002020201010
41033122202112031210
52344113312044323
6103101201302220
76106042654620
oct1173242261544
9264080066633
1085270815588
1133188174922
1214639034970
13806c1137ca
1441acbb4180
1523410bbc93
hex13da896364

85270815588 has 96 divisors (see below), whose sum is σ = 231120547840. Its totient is φ = 23966409600.

The previous prime is 85270815587. The next prime is 85270815653. The reversal of 85270815588 is 88551807258.

It is a super-2 number, since 2×852708155882 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85270815587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1273818 + ... + 1339086.

Almost surely, 285270815588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85270815588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115560273920).

85270815588 is an abundant number, since it is smaller than the sum of its proper divisors (145849732252).

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

85270815588 is a wasteful number, since it uses less digits than its factorization.

85270815588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65537 (or 65535 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 57.

The spelling of 85270815588 in words is "eighty-five billion, two hundred seventy million, eight hundred fifteen thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 103 151 206 302 309 412 453 604 618 721 906 1057 1236 1442 1812 2114 2163 2884 3171 4228 4326 6342 8652 12684 15553 31106 46659 62212 65269 93318 108871 130538 186636 195807 217742 261076 326613 391614 435484 456883 653226 783228 913766 1306452 1370649 1827532 2741298 5482596 6722707 9855619 13445414 19711238 20168121 26890828 29566857 39422476 40336242 47058949 59133714 68989333 80672484 94117898 118267428 137978666 141176847 188235796 206967999 275957332 282353694 413935998 564707388 827871996 1015128757 2030257514 3045386271 4060515028 6090772542 7105901299 12181545084 14211802598 21317703897 28423605196 42635407794 85270815588