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84319245 = 3351971463
BaseRepresentation
bin1010000011010…
…01110000001101
312212122212021000
411001221300031
5133041203440
612211130513
72042462463
oct501516015
9185585230
1084319245
114366132a
12242a3a39
131461335a
14b2ac833
157608730
hex5069c0d

84319245 has 64 divisors (see below), whose sum is σ = 160358400. Its totient is φ = 41912640.

The previous prime is 84319231. The next prime is 84319273. The reversal of 84319245 is 54291348.

It is not a de Polignac number, because 84319245 - 24 = 84319229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181884 + ... + 182346.

It is an arithmetic number, because the mean of its divisors is an integer number (2505600).

Almost surely, 284319245 is an apocalyptic number.

It is an amenable number.

84319245 is a deficient number, since it is larger than the sum of its proper divisors (76039155).

84319245 is a wasteful number, since it uses less digits than its factorization.

84319245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 561 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 84319245 is about 9182.5511161115. The cubic root of 84319245 is about 438.5060298982.

The spelling of 84319245 in words is "eighty-four million, three hundred nineteen thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 19 27 45 57 71 95 135 171 213 285 355 463 513 639 855 1065 1349 1389 1917 2315 2565 3195 4047 4167 6745 6945 8797 9585 12141 12501 20235 20835 26391 32873 36423 43985 60705 62505 79173 98619 131955 164365 182115 237519 295857 395865 493095 624587 887571 1187595 1479285 1873761 3122935 4437855 5621283 9368805 16863849 28106415 84319245