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84830231 = 1910940961
BaseRepresentation
bin1010000111001…
…10100000010111
312220121211012102
411003212200113
5133204031411
612230112315
72050021313
oct503464027
9186554172
1084830231
1143980232
12244ab69b
1314761b05
14b3a2b43
1576a9d3b
hex50e6817

84830231 has 8 divisors (see below), whose sum is σ = 90116400. Its totient is φ = 79626240.

The previous prime is 84830227. The next prime is 84830243. The reversal of 84830231 is 13203848.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84830231 - 22 = 84830227 is a prime.

It is a super-2 number, since 2×848302312 = 14392336183026722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84830194 and 84830203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84830201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18410 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (11264550).

Almost surely, 284830231 is an apocalyptic number.

84830231 is a deficient number, since it is larger than the sum of its proper divisors (5286169).

84830231 is a wasteful number, since it uses less digits than its factorization.

84830231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41089.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 84830231 is about 9210.3328387198. The cubic root of 84830231 is about 439.3900484382.

The spelling of 84830231 in words is "eighty-four million, eight hundred thirty thousand, two hundred thirty-one".

Divisors: 1 19 109 2071 40961 778259 4464749 84830231