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6868812 = 2232341607
BaseRepresentation
bin11010001100111101001100
3110220222020110
4122030331030
53224300222
6403120020
7112245456
oct32147514
913828213
106868812
113971705
122373010
1315665b2
14cab2d6
1590a30c
hex68cf4c

6868812 has 48 divisors (see below), whose sum is σ = 17160192. Its totient is φ = 2133120.

The previous prime is 6868811. The next prime is 6868817. The reversal of 6868812 is 2188686.

It is not an unprimeable number, because it can be changed into a prime (6868811) 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, 11013 + ... + 11619.

It is an arithmetic number, because the mean of its divisors is an integer number (357504).

Almost surely, 26868812 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 6868812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8580096).

6868812 is an abundant number, since it is smaller than the sum of its proper divisors (10291380).

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

6868812 is a wasteful number, since it uses less digits than its factorization.

6868812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 6868812 is about 2620.8418494827. The cubic root of 6868812 is about 190.0905570169.

The spelling of 6868812 in words is "six million, eight hundred sixty-eight thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 23 41 46 69 82 92 123 138 164 246 276 492 607 943 1214 1821 1886 2428 2829 3642 3772 5658 7284 11316 13961 24887 27922 41883 49774 55844 74661 83766 99548 149322 167532 298644 572401 1144802 1717203 2289604 3434406 6868812