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82897883 = 531564111
BaseRepresentation
bin1001111000011…
…10101111011011
312202222122111222
410330032233123
5132210213013
612120442255
72024422535
oct474165733
9182878458
1082897883
1142880452
122391938b
1314236403
14b01c855
157427508
hex4f0ebdb

82897883 has 4 divisors (see below), whose sum is σ = 84462048. Its totient is φ = 81333720.

The previous prime is 82897861. The next prime is 82897897. The reversal of 82897883 is 38879828.

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 82897883 - 222 = 78703579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1564111 = 82897883 / (8 + 2 + 8 + 9 + 7 + 8 + 8 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82897823) 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, 782003 + ... + 782108.

It is an arithmetic number, because the mean of its divisors is an integer number (21115512).

Almost surely, 282897883 is an apocalyptic number.

82897883 is a deficient number, since it is larger than the sum of its proper divisors (1564165).

82897883 is a wasteful number, since it uses less digits than its factorization.

82897883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564164.

The product of its digits is 1548288, while the sum is 53.

The square root of 82897883 is about 9104.8274558061. The cubic root of 82897883 is about 436.0281015330.

The spelling of 82897883 in words is "eighty-two million, eight hundred ninety-seven thousand, eight hundred eighty-three".

Divisors: 1 53 1564111 82897883