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85718120 = 23519112787
BaseRepresentation
bin1010001101111…
…11010001101000
312222021221011012
411012333101220
5133420434440
612301123052
72060410025
oct506772150
9188257135
1085718120
1144427324
1224859488
13149b2ca7
14b55454c
1577d2e65
hex51bf468

85718120 has 32 divisors (see below), whose sum is σ = 203018400. Its totient is φ = 32482368.

The previous prime is 85718111. The next prime is 85718173. The reversal of 85718120 is 2181758.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55634 + ... + 57153.

It is an arithmetic number, because the mean of its divisors is an integer number (6344325).

Almost surely, 285718120 is an apocalyptic number.

It is an amenable number.

85718120 is an abundant number, since it is smaller than the sum of its proper divisors (117300280).

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

85718120 is a wasteful number, since it uses less digits than its factorization.

85718120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112817 (or 112813 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 85718120 is about 9258.4080705054. The cubic root of 85718120 is about 440.9177126853.

Adding to 85718120 its reverse (2181758), we get a palindrome (87899878).

The spelling of 85718120 in words is "eighty-five million, seven hundred eighteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 112787 225574 451148 563935 902296 1127870 2142953 2255740 4285906 4511480 8571812 10714765 17143624 21429530 42859060 85718120