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230840929 = 11672931069
BaseRepresentation
bin11011100001001…
…01101001100001
3121002100221020001
431300211221201
5433043402204
634523420001
75502054424
oct1560455141
9532327201
10230840929
11109338230
1265384601
1338a94c87
142292d9bb
15153ec4a4
hexdc25a61

230840929 has 16 divisors (see below), whose sum is σ = 256697280. Its totient is φ = 205824960.

The previous prime is 230840921. The next prime is 230840933. The reversal of 230840929 is 929048032.

It is not a de Polignac number, because 230840929 - 23 = 230840921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230840921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215407 + ... + 216475.

It is an arithmetic number, because the mean of its divisors is an integer number (16043580).

Almost surely, 2230840929 is an apocalyptic number.

It is an amenable number.

230840929 is a deficient number, since it is larger than the sum of its proper divisors (25856351).

230840929 is a wasteful number, since it uses less digits than its factorization.

230840929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 230840929 is about 15193.4502006621. The cubic root of 230840929 is about 613.4383708404.

The spelling of 230840929 in words is "two hundred thirty million, eight hundred forty thousand, nine hundred twenty-nine".

Divisors: 1 11 67 293 737 1069 3223 11759 19631 71623 215941 313217 787853 3445387 20985539 230840929