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85672620 = 223351114423
BaseRepresentation
bin1010001101101…
…00001010101100
312222012121202000
411012310022230
5133413010440
612300132300
72060130255
oct506641254
9188177660
1085672620
11443a6120
1224837090
1314998377
14b541b2c
1577c4730
hex51b42ac

85672620 has 96 divisors (see below), whose sum is σ = 290787840. Its totient is φ = 20767680.

The previous prime is 85672607. The next prime is 85672633. The reversal of 85672620 is 2627658.

It is an interprime number because it is at equal distance from previous prime (85672607) and next prime (85672633).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1272 + ... + 13151.

It is an arithmetic number, because the mean of its divisors is an integer number (3029040).

Almost surely, 285672620 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 85672620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145393920).

85672620 is an abundant number, since it is smaller than the sum of its proper divisors (205115220).

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

85672620 is a wasteful number, since it uses less digits than its factorization.

85672620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14452 (or 14444 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 85672620 is about 9255.9505184503. The cubic root of 85672620 is about 440.8396844278.

The spelling of 85672620 in words is "eighty-five million, six hundred seventy-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 66 90 99 108 110 132 135 165 180 198 220 270 297 330 396 495 540 594 660 990 1188 1485 1980 2970 5940 14423 28846 43269 57692 72115 86538 129807 144230 158653 173076 216345 259614 288460 317306 389421 432690 475959 519228 634612 649035 778842 793265 865380 951918 1298070 1427877 1557684 1586530 1903836 1947105 2379795 2596140 2855754 3173060 3894210 4283631 4759590 5711508 7139385 7788420 8567262 9519180 14278770 17134524 21418155 28557540 42836310 85672620