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84249305 = 5723310331
BaseRepresentation
bin1010000010110…
…00101011011001
312212112022022122
411001120223121
5133031434210
612205431025
72042051540
oct501305331
9185468278
1084249305
1143613828
122426b475
13145ba57a
14b291157
1575e2b55
hex5058ad9

84249305 has 16 divisors (see below), whose sum is σ = 116049024. Its totient is φ = 57517440.

The previous prime is 84249283. The next prime is 84249307. The reversal of 84249305 is 50394248.

It is not a de Polignac number, because 84249305 - 26 = 84249241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (84249307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2990 + ... + 13320.

It is an arithmetic number, because the mean of its divisors is an integer number (7253064).

Almost surely, 284249305 is an apocalyptic number.

It is an amenable number.

84249305 is a deficient number, since it is larger than the sum of its proper divisors (31799719).

84249305 is a wasteful number, since it uses less digits than its factorization.

84249305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10576.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 84249305 is about 9178.7420162024. The cubic root of 84249305 is about 438.3847543210.

The spelling of 84249305 in words is "eighty-four million, two hundred forty-nine thousand, three hundred five".

Divisors: 1 5 7 35 233 1165 1631 8155 10331 51655 72317 361585 2407123 12035615 16849861 84249305