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85363668 = 2232131791019
BaseRepresentation
bin1010001011010…
…00101111010100
312221121220221100
411011220233110
5133323114133
612245350100
72054402445
oct505505724
9187556840
1085363668
1144204a95
1224708330
13148ba860
14b4a12cc
157762e13
hex5168bd4

85363668 has 72 divisors (see below), whose sum is σ = 233906400. Its totient is φ = 26093376.

The previous prime is 85363667. The next prime is 85363673. The reversal of 85363668 is 86636358.

85363668 is a `hidden beast` number, since 8 + 5 + 3 + 636 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85363667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83263 + ... + 84281.

It is an arithmetic number, because the mean of its divisors is an integer number (3248700).

Almost surely, 285363668 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 85363668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116953200).

85363668 is an abundant number, since it is smaller than the sum of its proper divisors (148542732).

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

85363668 is a wasteful number, since it uses less digits than its factorization.

85363668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1216 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 85363668 is about 9239.2460731382. The cubic root of 85363668 is about 440.3091284964.

The spelling of 85363668 in words is "eighty-five million, three hundred sixty-three thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 179 234 358 468 537 716 1019 1074 1611 2038 2148 2327 3057 3222 4076 4654 6114 6444 6981 9171 9308 12228 13247 13962 18342 20943 26494 27924 36684 39741 41886 52988 79482 83772 119223 158964 182401 238446 364802 476892 547203 729604 1094406 1641609 2188812 2371213 3283218 4742426 6566436 7113639 9484852 14227278 21340917 28454556 42681834 85363668