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230111340 = 223531312253
BaseRepresentation
bin11011011011100…
…11100001101100
3121000222212102020
431231303201230
5432402030330
634500030140
75462625354
oct1555634154
9530885366
10230111340
1110898a068
1265092350
133889ab74
14227bdb64
1515306210
hexdb7386c

230111340 has 48 divisors (see below), whose sum is σ = 646423008. Its totient is φ = 61161984.

The previous prime is 230111327. The next prime is 230111347. The reversal of 230111340 is 43111032.

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

It is not an unprimeable number, because it can be changed into a prime (230111347) 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, 12654 + ... + 24906.

It is an arithmetic number, because the mean of its divisors is an integer number (13467146).

Almost surely, 2230111340 is an apocalyptic number.

230111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230111340 is an abundant number, since it is smaller than the sum of its proper divisors (416311668).

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

230111340 is a wasteful number, since it uses less digits than its factorization.

230111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578 (or 12576 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 230111340 is about 15169.4212150629. The cubic root of 230111340 is about 612.7914170674.

Adding to 230111340 its reverse (43111032), we get a palindrome (273222372).

The spelling of 230111340 in words is "two hundred thirty million, one hundred eleven thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 313 626 939 1252 1565 1878 3130 3756 4695 6260 9390 12253 18780 24506 36759 49012 61265 73518 122530 147036 183795 245060 367590 735180 3835189 7670378 11505567 15340756 19175945 23011134 38351890 46022268 57527835 76703780 115055670 230111340