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8394980 = 2251123469
BaseRepresentation
bin100000000001…
…100011100100
3120210111202012
4200001203210
54122114410
6455533352
7131233106
oct40014344
916714665
108394980
114814300
12298a258
13197c159
141187576
15b0c605
hex8018e4

8394980 has 36 divisors (see below), whose sum is σ = 19383420. Its totient is φ = 3051840.

The previous prime is 8394943. The next prime is 8394983. The reversal of 8394980 is 894938.

It can be written as a sum of positive squares in 2 ways, for example, as 1308736 + 7086244 = 1144^2 + 2662^2 .

It is not an unprimeable number, because it can be changed into a prime (8394983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 686 + ... + 4154.

Almost surely, 28394980 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 8394980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9691710).

8394980 is an abundant number, since it is smaller than the sum of its proper divisors (10988440).

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

8394980 is a wasteful number, since it uses less digits than its factorization.

8394980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 8394980 is about 2897.4091875329. The cubic root of 8394980 is about 203.2387687720.

The spelling of 8394980 in words is "eight million, three hundred ninety-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 3469 6938 13876 17345 34690 38159 69380 76318 152636 190795 381590 419749 763180 839498 1678996 2098745 4197490 8394980