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85093020 = 2232519139179
BaseRepresentation
bin1010001001001…
…10101010011100
312221010011200100
411010212222130
5133240434040
612235501100
72052164415
oct504465234
9187104610
1085093020
114403a711
12245b7790
13148245cc
14b43080c
15770cb30
hex5126a9c

85093020 has 144 divisors (see below), whose sum is σ = 275184000. Its totient is φ = 21223296.

The previous prime is 85092979. The next prime is 85093027. The reversal of 85093020 is 2039058.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85093027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475291 + ... + 475469.

It is an arithmetic number, because the mean of its divisors is an integer number (1911000).

Almost surely, 285093020 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 85093020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137592000).

85093020 is an abundant number, since it is smaller than the sum of its proper divisors (190090980).

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

85093020 is a wasteful number, since it uses less digits than its factorization.

85093020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 85093020 is about 9224.5877956687. The cubic root of 85093020 is about 439.8432981933.

The spelling of 85093020 in words is "eighty-five million, ninety-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 139 171 179 180 190 228 278 285 342 358 380 417 537 556 570 684 695 716 834 855 895 1074 1140 1251 1390 1611 1668 1710 1790 2085 2148 2502 2641 2685 2780 3222 3401 3420 3580 4170 5004 5282 5370 6255 6444 6802 7923 8055 8340 10203 10564 10740 12510 13205 13604 15846 16110 17005 20406 23769 24881 25020 26410 30609 31692 32220 34010 39615 40812 47538 49762 51015 52820 61218 68020 74643 79230 95076 99524 102030 118845 122436 124405 149286 153045 158460 204060 223929 237690 248810 298572 306090 373215 447858 472739 475380 497620 612180 746430 895716 945478 1119645 1418217 1492860 1890956 2239290 2363695 2836434 4254651 4478580 4727390 5672868 7091085 8509302 9454780 14182170 17018604 21273255 28364340 42546510 85093020