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87003424 = 252718857
BaseRepresentation
bin1010010111110…
…01000100100000
320001201020021001
411023321010200
5134233102144
612344441344
72104342204
oct513710440
9201636231
1087003424
1145124a62
1225179254
1315043021
14b7aab04
157988bd4
hex52f9120

87003424 has 12 divisors (see below), whose sum is σ = 171288054. Its totient is φ = 43501696.

The previous prime is 87003419. The next prime is 87003431. The reversal of 87003424 is 42430078.

It can be written as a sum of positive squares in only one way, i.e., 83393424 + 3610000 = 9132^2 + 1900^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87003392 and 87003401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359397 + ... + 1359460.

Almost surely, 287003424 is an apocalyptic number.

It is an amenable number.

87003424 is a deficient number, since it is larger than the sum of its proper divisors (84284630).

87003424 is a wasteful number, since it uses less digits than its factorization.

87003424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718867 (or 2718859 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 87003424 is about 9327.5625969489. The cubic root of 87003424 is about 443.1105750843.

The spelling of 87003424 in words is "eighty-seven million, three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 2718857 5437714 10875428 21750856 43501712 87003424