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230323340 = 22513283821
BaseRepresentation
bin11011011101001…
…11010010001100
3121001101122020002
431232213102030
5432430321330
634504343432
75464500422
oct1556472214
9531348202
10230323340
11109014375
1265174b78
1338943500
1422837112
1515348e45
hexdba748c

230323340 has 72 divisors (see below), whose sum is σ = 530702928. Its totient is φ = 83915520.

The previous prime is 230323337. The next prime is 230323349. The reversal of 230323340 is 43323032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (230323349) 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, 280130 + ... + 280950.

It is an arithmetic number, because the mean of its divisors is an integer number (7370874).

Almost surely, 2230323340 is an apocalyptic number.

230323340 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 230323340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265351464).

230323340 is an abundant number, since it is smaller than the sum of its proper divisors (300379588).

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

230323340 is a wasteful number, since it uses less digits than its factorization.

230323340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 230323340 is about 15176.4073482495. The cubic root of 230323340 is about 612.9795461490.

Adding to 230323340 its reverse (43323032), we get a palindrome (273646372).

The spelling of 230323340 in words is "two hundred thirty million, three hundred twenty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 83 130 166 169 260 332 338 415 676 821 830 845 1079 1642 1660 1690 2158 3284 3380 4105 4316 5395 8210 10673 10790 14027 16420 21346 21580 28054 42692 53365 56108 68143 70135 106730 136286 138749 140270 213460 272572 277498 280540 340715 554996 681430 693745 885859 1362860 1387490 1771718 2774980 3543436 4429295 8858590 11516167 17717180 23032334 46064668 57580835 115161670 230323340