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8425384 = 2311671429
BaseRepresentation
bin100000001000…
…111110101000
3120212001110021
4200020332220
54124103014
6500330224
7131420542
oct40107650
916761407
108425384
114835130
1229a3974
13198cc46
141194692
15b16624
hex808fa8

8425384 has 32 divisors (see below), whose sum is σ = 17503200. Its totient is φ = 3769920.

The previous prime is 8425331. The next prime is 8425423. The reversal of 8425384 is 4835248.

It is a d-powerful number, because it can be written as 8 + 43 + 223 + 53 + 39 + 83 + 47 .

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, 5182 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (546975).

Almost surely, 28425384 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 8425384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8751600).

8425384 is an abundant number, since it is smaller than the sum of its proper divisors (9077816).

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

8425384 is a wasteful number, since it uses less digits than its factorization.

8425384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1509 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 8425384 is about 2902.6512019187. The cubic root of 8425384 is about 203.4838289826.

It can be divided in two parts, 842 and 5384, that added together give a palindrome (6226).

The spelling of 8425384 in words is "eight million, four hundred twenty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 67 88 134 268 536 737 1429 1474 2858 2948 5716 5896 11432 15719 31438 62876 95743 125752 191486 382972 765944 1053173 2106346 4212692 8425384