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230193508809 = 31124592836747
BaseRepresentation
bin1101011001100010011…
…0100011000111001001
3211000011120200212001110
43112120212203013021
512232414014240214
6253425513440533
722426260353325
oct3263046430711
9730146625043
10230193508809
1189696264270
1238743410149
1318926807b14
14b1da0dc985
155ec4074159
hex35989a31c9

230193508809 has 16 divisors (see below), whose sum is σ = 334963203840. Its totient is φ = 139454433360.

The previous prime is 230193508807. The next prime is 230193508843. The reversal of 230193508809 is 908805391032.

It is a happy number.

It is not a de Polignac number, because 230193508809 - 21 = 230193508807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230193508807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337227 + ... + 1499520.

It is an arithmetic number, because the mean of its divisors is an integer number (20935200240).

Almost surely, 2230193508809 is an apocalyptic number.

It is an amenable number.

230193508809 is a deficient number, since it is larger than the sum of its proper divisors (104769695031).

230193508809 is a wasteful number, since it uses less digits than its factorization.

230193508809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839220.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 230193508809 in words is "two hundred thirty billion, one hundred ninety-three million, five hundred eight thousand, eight hundred nine".

Divisors: 1 3 11 33 2459 7377 27049 81147 2836747 8510241 31204217 93612651 6975560873 20926682619 76731169603 230193508809