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84230055 = 32571367307
BaseRepresentation
bin1010000010100…
…11111110100111
312212111022220200
411001103332213
5133030330210
612205201543
72041641450
oct501237647
9185438820
1084230055
1143600318
12242602b3
13145b1890
14b288127
1575dc0c0
hex5053fa7

84230055 has 96 divisors (see below), whose sum is σ = 182966784. Its totient is φ = 34898688.

The previous prime is 84230051. The next prime is 84230089. The reversal of 84230055 is 55003248.

It is not a de Polignac number, because 84230055 - 22 = 84230051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84230051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 274212 + ... + 274518.

It is an arithmetic number, because the mean of its divisors is an integer number (1905904).

Almost surely, 284230055 is an apocalyptic number.

84230055 is an abundant number, since it is smaller than the sum of its proper divisors (98736729).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84230055 is a wasteful number, since it uses less digits than its factorization.

84230055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 84230055 is about 9177.6933376530. The cubic root of 84230055 is about 438.3513631481.

The spelling of 84230055 in words is "eighty-four million, two hundred thirty thousand, fifty-five".

Divisors: 1 3 5 7 9 13 15 21 35 39 45 63 65 67 91 105 117 195 201 273 307 315 335 455 469 585 603 819 871 921 1005 1365 1407 1535 2149 2345 2613 2763 3015 3991 4095 4221 4355 4605 6097 6447 7035 7839 10745 11973 13065 13815 18291 19341 19955 20569 21105 27937 30485 32235 35919 39195 54873 59865 61707 83811 91455 96705 102845 139685 143983 179595 185121 251433 267397 274365 308535 419055 431949 719915 802191 925605 1257165 1295847 1336985 1871779 2159745 2406573 4010955 5615337 6479235 9358895 12032865 16846011 28076685 84230055