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68085032837290 = 25719291765232897
BaseRepresentation
bin11110111101100010010000…
…01100100110000010101010
322221001212101000001121200121
433132301020030212002222
532411001121401243130
6400445455435153454
720224660404230410
oct1736611014460252
9287055330047617
1068085032837290
111a76a778077587
1277774038a588a
132bcb511192591
1412b549431d2b0
157d10abc77d7a
hex3dec483260aa

68085032837290 has 64 divisors (see below), whose sum is σ = 152516122387200. Its totient is φ = 21352257110016.

The previous prime is 68085032837209. The next prime is 68085032837323. The reversal of 68085032837290 is 9273823058086.

It is a happy number.

It is a super-2 number, since 2×680850328372902 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 882577879 + ... + 882655018.

It is an arithmetic number, because the mean of its divisors is an integer number (2383064412300).

Almost surely, 268085032837290 is an apocalyptic number.

68085032837290 is an abundant number, since it is smaller than the sum of its proper divisors (84431089549910).

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

68085032837290 is a wasteful number, since it uses less digits than its factorization.

68085032837290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765232959.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 68085032837290 in words is "sixty-eight trillion, eighty-five billion, thirty-two million, eight hundred thirty-seven thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 19 29 35 38 58 70 95 133 145 190 203 266 290 406 551 665 1015 1102 1330 2030 2755 3857 5510 7714 19285 38570 1765232897 3530465794 8826164485 12356630279 17652328970 24713260558 33539425043 51191754013 61783151395 67078850086 102383508026 123566302790 167697125215 234775975301 255958770065 335394250430 358342278091 469551950602 511917540130 716684556182 972643326247 1173879876505 1791711390455 1945286652494 2347759753010 3583422780910 4863216631235 6808503283729 9726433262470 13617006567458 34042516418645 68085032837290