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864000005 = 51115709091
BaseRepresentation
bin110011011111111…
…001100000000101
32020012202202012012
4303133321200011
53232141000010
6221422304005
730260610311
oct6337714005
92205682165
10864000005
11403783aa0
12201428005
1310a00070b
1482a68b41
1550cba005
hex337f9805

864000005 has 8 divisors (see below), whose sum is σ = 1131054624. Its totient is φ = 628363600.

The previous prime is 864000001. The next prime is 864000023. The reversal of 864000005 is 500000468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 864000005 - 22 = 864000001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864000001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7854491 + ... + 7854600.

It is an arithmetic number, because the mean of its divisors is an integer number (141381828).

Almost surely, 2864000005 is an apocalyptic number.

It is an amenable number.

864000005 is a deficient number, since it is larger than the sum of its proper divisors (267054619).

864000005 is a wasteful number, since it uses less digits than its factorization.

864000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15709107.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 864000005 is about 29393.8769984499. The cubic root of 864000005 is about 952.4406330182.

The spelling of 864000005 in words is "eight hundred sixty-four million, five", and thus it is an aban number.

Divisors: 1 5 11 55 15709091 78545455 172800001 864000005