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87283387 = 791104853
BaseRepresentation
bin1010011001111…
…01011010111011
320002020110022001
411030331122323
5134321032022
612354441431
72106616342
oct514753273
9202213261
1087283387
11452a6334
1225293277
1315110599
14b840b59
1579e1b27
hex533d6bb

87283387 has 4 divisors (see below), whose sum is σ = 88388320. Its totient is φ = 86178456.

The previous prime is 87283373. The next prime is 87283393. The reversal of 87283387 is 78338278.

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

It is a cyclic number.

It is not a de Polignac number, because 87283387 - 211 = 87281339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87283307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552348 + ... + 552505.

It is an arithmetic number, because the mean of its divisors is an integer number (22097080).

Almost surely, 287283387 is an apocalyptic number.

87283387 is a deficient number, since it is larger than the sum of its proper divisors (1104933).

87283387 is a wasteful number, since it uses less digits than its factorization.

87283387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104932.

The product of its digits is 451584, while the sum is 46.

The square root of 87283387 is about 9342.5578403347. The cubic root of 87283387 is about 443.5853523404.

The spelling of 87283387 in words is "eighty-seven million, two hundred eighty-three thousand, three hundred eighty-seven".

Divisors: 1 79 1104853 87283387