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85237080 = 23352389347
BaseRepresentation
bin1010001010010…
…01110101011000
312221101111021220
411011021311120
5133310041310
612242532040
72053334415
oct505116530
9187344256
1085237080
1144128975
1224667020
1314875056
14b46b10c
15773a670
hex5149d58

85237080 has 128 divisors (see below), whose sum is σ = 270604800. Its totient is φ = 21435392.

The previous prime is 85237079. The next prime is 85237093. The reversal of 85237080 is 8073258.

It is a congruent number.

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, 245467 + ... + 245813.

It is an arithmetic number, because the mean of its divisors is an integer number (2114100).

Almost surely, 285237080 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 85237080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135302400).

85237080 is an abundant number, since it is smaller than the sum of its proper divisors (185367720).

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

85237080 is a wasteful number, since it uses less digits than its factorization.

85237080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 85237080 is about 9232.3929725722. The cubic root of 85237080 is about 440.0913722085.

The spelling of 85237080 in words is "eighty-five million, two hundred thirty-seven thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 89 92 115 120 138 178 184 230 267 276 345 347 356 445 460 534 552 690 694 712 890 920 1041 1068 1335 1380 1388 1735 1780 2047 2082 2136 2670 2760 2776 3470 3560 4094 4164 5205 5340 6141 6940 7981 8188 8328 10235 10410 10680 12282 13880 15962 16376 20470 20820 23943 24564 30705 30883 31924 39905 40940 41640 47886 49128 61410 61766 63848 79810 81880 92649 95772 119715 122820 123532 154415 159620 185298 191544 239430 245640 247064 308830 319240 370596 463245 478860 617660 710309 741192 926490 957720 1235320 1420618 1852980 2130927 2841236 3551545 3705960 4261854 5682472 7103090 8523708 10654635 14206180 17047416 21309270 28412360 42618540 85237080