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87004835 = 517400967
BaseRepresentation
bin1010010111110…
…01011010100011
320001201022012022
411023321122203
5134233123320
612344452055
72104346261
oct513713243
9201638168
1087004835
1145126025
122517a02b
1315043868
14b7ab431
157989325
hex52f96a3

87004835 has 4 divisors (see below), whose sum is σ = 104405808. Its totient is φ = 69603864.

The previous prime is 87004807. The next prime is 87004859. The reversal of 87004835 is 53840078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53840078 = 226920039.

It is a cyclic number.

It is not a de Polignac number, because 87004835 - 28 = 87004579 is a prime.

It is a super-3 number, since 3×870048353 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87004795 and 87004804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8700479 + ... + 8700488.

It is an arithmetic number, because the mean of its divisors is an integer number (26101452).

Almost surely, 287004835 is an apocalyptic number.

87004835 is a deficient number, since it is larger than the sum of its proper divisors (17400973).

87004835 is a wasteful number, since it uses less digits than its factorization.

87004835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400972.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 87004835 is about 9327.6382326932. The cubic root of 87004835 is about 443.1129704906.

The spelling of 87004835 in words is "eighty-seven million, four thousand, eight hundred thirty-five".

Divisors: 1 5 17400967 87004835