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85115160 = 233251321399
BaseRepresentation
bin1010001001011…
…00000100011000
312221011022001100
411010230010120
5133242141120
612240151400
72052316104
oct504540430
9187138040
1085115160
1144055309
1224608560
1314831700
14b438904
157714490
hex512c118

85115160 has 144 divisors (see below), whose sum is σ = 299754000. Its totient is φ = 20936448.

The previous prime is 85115159. The next prime is 85115161. The reversal of 85115160 is 6151158.

It is an interprime number because it is at equal distance from previous prime (85115159) and next prime (85115161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85115161) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60141 + ... + 61539.

It is an arithmetic number, because the mean of its divisors is an integer number (2081625).

Almost surely, 285115160 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 85115160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149877000).

85115160 is an abundant number, since it is smaller than the sum of its proper divisors (214638840).

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

85115160 is a wasteful number, since it uses less digits than its factorization.

85115160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 85115160 is about 9225.7877712421. The cubic root of 85115160 is about 439.8814418866.

The spelling of 85115160 in words is "eighty-five million, one hundred fifteen thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 36 39 40 45 52 60 65 72 78 90 104 117 120 130 156 169 180 195 234 260 312 338 360 390 468 507 520 585 676 780 845 936 1014 1170 1352 1399 1521 1560 1690 2028 2340 2535 2798 3042 3380 4056 4197 4680 5070 5596 6084 6760 6995 7605 8394 10140 11192 12168 12591 13990 15210 16788 18187 20280 20985 25182 27980 30420 33576 36374 41970 50364 54561 55960 60840 62955 72748 83940 90935 100728 109122 125910 145496 163683 167880 181870 218244 236431 251820 272805 327366 363740 436488 472862 503640 545610 654732 709293 727480 818415 945724 1091220 1182155 1309464 1418586 1636830 1891448 2127879 2182440 2364310 2837172 3273660 3546465 4255758 4728620 5674344 6547320 7092930 8511516 9457240 10639395 14185860 17023032 21278790 28371720 42557580 85115160