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230238378819 = 3237878378721
BaseRepresentation
bin1101011001101101000…
…1101101101101000011
3211000021201010111010200
43112123101231231003
512233012011110234
6253434155300243
722430343633561
oct3263321555503
9730251114120
10230238378819
1189709620819
123875644a683
1318932bb8217
14b20205ca31
155ec7e88d99
hex359b46db43

230238378819 has 24 divisors (see below), whose sum is σ = 341598059712. Its totient is φ = 149324912640.

The previous prime is 230238378763. The next prime is 230238378827. The reversal of 230238378819 is 918873832032.

230238378819 is a `hidden beast` number, since 2 + 30 + 238 + 378 + 8 + 1 + 9 = 666.

It is not a de Polignac number, because 230238378819 - 27 = 230238378691 is a prime.

It is a super-2 number, since 2×2302383788192 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230238378889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2885379 + ... + 2964099.

It is an arithmetic number, because the mean of its divisors is an integer number (14233252488).

Almost surely, 2230238378819 is an apocalyptic number.

230238378819 is a deficient number, since it is larger than the sum of its proper divisors (111359680893).

230238378819 is a wasteful number, since it uses less digits than its factorization.

230238378819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87547 (or 87544 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 230238378819 in words is "two hundred thirty billion, two hundred thirty-eight million, three hundred seventy-eight thousand, eight hundred nineteen".

Divisors: 1 3 9 37 111 333 8783 26349 78721 79047 236163 324971 708489 974913 2912677 2924739 8738031 26214093 691406543 2074219629 6222658887 25582042091 76746126273 230238378819