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230123400 = 2335213163181
BaseRepresentation
bin11011011011101…
…10011110001000
3121001000110221220
431231312132020
5432402422100
634500202040
75463005463
oct1555663610
9531013856
10230123400
11108998131
1265099320
13388a34c0
14227c42da
1515309aa0
hexdb76788

230123400 has 192 divisors, whose sum is σ = 777241920. Its totient is φ = 55987200.

The previous prime is 230123351. The next prime is 230123417. The reversal of 230123400 is 4321032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 230123400.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1271310 + ... + 1271490.

It is an arithmetic number, because the mean of its divisors is an integer number (4048135).

Almost surely, 2230123400 is an apocalyptic number.

230123400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230123400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388620960).

230123400 is an abundant number, since it is smaller than the sum of its proper divisors (547118520).

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

230123400 is a wasteful number, since it uses less digits than its factorization.

230123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 230123400 is about 15169.8187200770. The cubic root of 230123400 is about 612.8021222263.

Adding to 230123400 its reverse (4321032), we get a palindrome (234444432).

The spelling of 230123400 in words is "two hundred thirty million, one hundred twenty-three thousand, four hundred".