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85352560 = 24519233241
BaseRepresentation
bin1010001011001…
…10000001110000
312221121100200221
411011212001300
5133322240220
612245222424
72054325166
oct505460160
9187540627
1085352560
11441a7707
1224701a14
13148b5797
14b49b236
15775e9aa
hex5166070

85352560 has 80 divisors (see below), whose sum is σ = 210656160. Its totient is φ = 32071680.

The previous prime is 85352551. The next prime is 85352569. The reversal of 85352560 is 6525358.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85352551) and next prime (85352569).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85352569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354040 + ... + 354280.

It is an arithmetic number, because the mean of its divisors is an integer number (2633202).

Almost surely, 285352560 is an apocalyptic number.

85352560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85352560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105328080).

85352560 is an abundant number, since it is smaller than the sum of its proper divisors (125303600).

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

85352560 is a wasteful number, since it uses less digits than its factorization.

85352560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 85352560 is about 9238.6449222816. The cubic root of 85352560 is about 440.2900291689.

The spelling of 85352560 in words is "eighty-five million, three hundred fifty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 233 241 304 380 466 482 760 932 964 1165 1205 1520 1864 1928 2330 2410 3728 3856 4427 4579 4660 4820 8854 9158 9320 9640 17708 18316 18640 19280 22135 22895 35416 36632 44270 45790 56153 70832 73264 88540 91580 112306 177080 183160 224612 280765 354160 366320 449224 561530 898448 1066907 1123060 2133814 2246120 4267628 4492240 5334535 8535256 10669070 17070512 21338140 42676280 85352560