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231084 = 223272131
BaseRepresentation
bin111000011010101100
3102201222200
4320122230
524343314
64541500
71651500
oct703254
9381880
10231084
11148687
12b1890
1381249
1460300
1548709
hex386ac

231084 has 54 divisors (see below), whose sum is σ = 684684. Its totient is φ = 65520.

The previous prime is 231079. The next prime is 231107. The reversal of 231084 is 480132.

It is a happy number.

231084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231084.

It is an unprimeable number.

231084 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1699 + ... + 1829.

2231084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342342).

231084 is an abundant number, since it is smaller than the sum of its proper divisors (453600).

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

231084 is a wasteful number, since it uses less digits than its factorization.

231084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 231084 is about 480.7119719749. The cubic root of 231084 is about 61.3653608195.

The spelling of 231084 in words is "two hundred thirty-one thousand, eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 131 147 196 252 262 294 393 441 524 588 786 882 917 1179 1572 1764 1834 2358 2751 3668 4716 5502 6419 8253 11004 12838 16506 19257 25676 33012 38514 57771 77028 115542 231084