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8117968 = 243131621
BaseRepresentation
bin11110111101111011010000
3120021102202111
4132331323100
54034233333
6445555104
7126000355
oct36757320
916242674
108117968
114645171
122875a94
1318b3041
14111462c
15aa54cd
hex7bded0

8117968 has 20 divisors (see below), whose sum is σ = 15788548. Its totient is φ = 4043520.

The previous prime is 8117951. The next prime is 8117969. The reversal of 8117968 is 8697118.

It can be written as a sum of positive squares in 2 ways, for example, as 2396304 + 5721664 = 1548^2 + 2392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8117968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4198 + ... + 5818.

Almost surely, 28117968 is an apocalyptic number.

It is an amenable number.

8117968 is a deficient number, since it is larger than the sum of its proper divisors (7670580).

8117968 is a wasteful number, since it uses less digits than its factorization.

8117968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1936 counting only the distinct ones).

The product of its digits is 24192, while the sum is 40.

The square root of 8117968 is about 2849.2048013437. The cubic root of 8117968 is about 200.9782737670.

The spelling of 8117968 in words is "eight million, one hundred seventeen thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 313 626 1252 1621 2504 3242 5008 6484 12968 25936 507373 1014746 2029492 4058984 8117968