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87063983 = 893492803
BaseRepresentation
bin1010011000001…
…11110110101111
320001211022022222
411030013312233
5134242021413
612350025555
72105013566
oct514076657
9201738288
1087063983
1145166506
12251a82bb
1315064766
14b7c4bdd
15799bb08
hex5307daf

87063983 has 8 divisors (see below), whose sum is σ = 88326000. Its totient is φ = 85808448.

The previous prime is 87063979. The next prime is 87064007. The reversal of 87063983 is 38936078.

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

It is a cyclic number.

It is not a de Polignac number, because 87063983 - 22 = 87063979 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 (87063913) 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, 29660 + ... + 32462.

It is an arithmetic number, because the mean of its divisors is an integer number (11040750).

Almost surely, 287063983 is an apocalyptic number.

87063983 is a deficient number, since it is larger than the sum of its proper divisors (1262017).

87063983 is a wasteful number, since it uses less digits than its factorization.

87063983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 87063983 is about 9330.8082715272. The cubic root of 87063983 is about 443.2133607313.

The spelling of 87063983 in words is "eighty-seven million, sixty-three thousand, nine hundred eighty-three".

Divisors: 1 89 349 2803 31061 249467 978247 87063983