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87063701 = 372353073
BaseRepresentation
bin1010011000001…
…11110010010101
320001211021221112
411030013302111
5134242014301
612350024405
72105013014
oct514076225
9201737845
1087063701
114516627a
12251a8105
13150645aa
14b7c4a7b
15799b9bb
hex5307c95

87063701 has 4 divisors (see below), whose sum is σ = 89416812. Its totient is φ = 84710592.

The previous prime is 87063689. The next prime is 87063703. The reversal of 87063701 is 10736078.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52852900 + 34210801 = 7270^2 + 5849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87063701 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 (87063703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176500 + ... + 1176573.

It is an arithmetic number, because the mean of its divisors is an integer number (22354203).

Almost surely, 287063701 is an apocalyptic number.

It is an amenable number.

87063701 is a deficient number, since it is larger than the sum of its proper divisors (2353111).

87063701 is a wasteful number, since it uses less digits than its factorization.

87063701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353110.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 87063701 is about 9330.7931602839. The cubic root of 87063701 is about 443.2128822085.

Adding to 87063701 its reverse (10736078), we get a palindrome (97799779).

The spelling of 87063701 in words is "eighty-seven million, sixty-three thousand, seven hundred one".

Divisors: 1 37 2353073 87063701