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8349984 = 253279367
BaseRepresentation
bin11111110110100100100000
3120201020000200
4133312210200
54114144414
6454545200
7130654656
oct37664440
916636020
108349984
114793515
122968200
131964826
141174dd6
15aee109
hex7f6920

8349984 has 72 divisors (see below), whose sum is σ = 24111360. Its totient is φ = 2740608.

The previous prime is 8349983. The next prime is 8349997. The reversal of 8349984 is 4899438.

It is a happy number.

8349984 is a `hidden beast` number, since 83 + 499 + 84 = 666.

8349984 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8349983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22569 + ... + 22935.

It is an arithmetic number, because the mean of its divisors is an integer number (334880).

Almost surely, 28349984 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 8349984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12055680).

8349984 is an abundant number, since it is smaller than the sum of its proper divisors (15761376).

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

8349984 is a wasteful number, since it uses less digits than its factorization.

8349984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 451 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 8349984 is about 2889.6338868445. The cubic root of 8349984 is about 202.8750069757.

The spelling of 8349984 in words is "eight million, three hundred forty-nine thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 79 96 144 158 237 288 316 367 474 632 711 734 948 1101 1264 1422 1468 1896 2202 2528 2844 2936 3303 3792 4404 5688 5872 6606 7584 8808 11376 11744 13212 17616 22752 26424 28993 35232 52848 57986 86979 105696 115972 173958 231944 260937 347916 463888 521874 695832 927776 1043748 1391664 2087496 2783328 4174992 8349984