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83396387 = 716611777
BaseRepresentation
bin1001111100010…
…00011100100011
312210220222100002
410332020130203
5132322141022
612135250215
72031600104
oct476103443
9183828302
1083396387
1143090a38
1223b1996b
131437c299
14b10c3ab
1574c5092
hex4f88723

83396387 has 8 divisors (see below), whose sum is σ = 84746592. Its totient is φ = 82051200.

The previous prime is 83396381. The next prime is 83396389. The reversal of 83396387 is 78369338.

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 83396387 - 222 = 79202083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83396381) 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 7 ways as a sum of consecutive naturals, for example, 46043 + ... + 47819.

It is an arithmetic number, because the mean of its divisors is an integer number (10593324).

Almost surely, 283396387 is an apocalyptic number.

83396387 is a deficient number, since it is larger than the sum of its proper divisors (1350205).

83396387 is a wasteful number, since it uses less digits than its factorization.

83396387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its digits is 653184, while the sum is 47.

The square root of 83396387 is about 9132.1622302716. The cubic root of 83396387 is about 436.9003694975.

The spelling of 83396387 in words is "eighty-three million, three hundred ninety-six thousand, three hundred eighty-seven".

Divisors: 1 71 661 1777 46931 126167 1174597 83396387