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87339530 = 2511937321
BaseRepresentation
bin1010011010010…
…11001000001010
320002100022022102
411031023020022
5134324331110
612355553402
72110242125
oct515131012
9202308272
1087339530
1145334533
12252bb862
131512ccc5
14b8573bc
157a035a5
hex534b20a

87339530 has 16 divisors (see below), whose sum is σ = 157364424. Its totient is φ = 34901760.

The previous prime is 87339521. The next prime is 87339547. The reversal of 87339530 is 3593378.

It can be written as a sum of positive squares in 4 ways, for example, as 38800441 + 48539089 = 6229^2 + 6967^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 15590.

Almost surely, 287339530 is an apocalyptic number.

87339530 is a deficient number, since it is larger than the sum of its proper divisors (70024894).

87339530 is a wasteful number, since it uses less digits than its factorization.

87339530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8521.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 87339530 is about 9345.5620483735. The cubic root of 87339530 is about 443.6804405946.

The spelling of 87339530 in words is "eighty-seven million, three hundred thirty-nine thousand, five hundred thirty".

Divisors: 1 2 5 10 1193 2386 5965 7321 11930 14642 36605 73210 8733953 17467906 43669765 87339530