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68585516 = 22193143677
BaseRepresentation
bin1000001011010…
…00100000101100
311210001111122022
410011220200230
5120024214031
610450005312
71461652526
oct405504054
9153044568
1068585516
113579534a
121ab76838
1311294a5c
149174a16
15604b97b
hex416882c

68585516 has 48 divisors (see below), whose sum is σ = 133647360. Its totient is φ = 30663360.

The previous prime is 68585513. The next prime is 68585521. The reversal of 68585516 is 61558586.

It is not an unprimeable number, because it can be changed into a prime (68585513) 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, 100970 + ... + 101646.

It is an arithmetic number, because the mean of its divisors is an integer number (2784320).

Almost surely, 268585516 is an apocalyptic number.

It is an amenable number.

68585516 is a deficient number, since it is larger than the sum of its proper divisors (65061844).

68585516 is a wasteful number, since it uses less digits than its factorization.

68585516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its digits is 288000, while the sum is 44.

The square root of 68585516 is about 8281.6372777368. The cubic root of 68585516 is about 409.3336707961. Note that the first 3 decimals are identical.

The spelling of 68585516 in words is "sixty-eight million, five hundred eighty-five thousand, five hundred sixteen".

Divisors: 1 2 4 19 31 38 43 62 76 86 124 172 589 677 817 1178 1333 1354 1634 2356 2666 2708 3268 5332 12863 20987 25327 25726 29111 41974 50654 51452 58222 83948 101308 116444 398753 553109 797506 902441 1106218 1595012 1804882 2212436 3609764 17146379 34292758 68585516