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85007868 = 223112272837
BaseRepresentation
bin1010001000100…
…01110111111100
312220221211212120
411010101313330
5133230222433
612234002540
72051361231
oct504216774
9186854776
1085007868
1143a91740
1224576450
13147c491a
14b40b788
1576e27b3
hex5111dfc

85007868 has 48 divisors (see below), whose sum is σ = 217413504. Its totient is φ = 25637440.

The previous prime is 85007851. The next prime is 85007873. The reversal of 85007868 is 86870058.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28546 + ... + 31382.

It is an arithmetic number, because the mean of its divisors is an integer number (4529448).

Almost surely, 285007868 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 85007868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108706752).

85007868 is an abundant number, since it is smaller than the sum of its proper divisors (132405636).

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

85007868 is a wasteful number, since it uses less digits than its factorization.

85007868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 85007868 is about 9219.9711496295. The cubic root of 85007868 is about 439.6965331721.

The spelling of 85007868 in words is "eighty-five million, seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 227 454 681 908 1362 2497 2724 2837 4994 5674 7491 8511 9988 11348 14982 17022 29964 31207 34044 62414 93621 124828 187242 374484 643999 1287998 1931997 2575996 3863994 7083989 7727988 14167978 21251967 28335956 42503934 85007868