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234030220 = 22519615869
BaseRepresentation
bin11011111001100…
…00010010001100
3121022100222002221
431330300102030
5434402431340
635120025124
75541136564
oct1574602214
9538328087
10234030220
11110116406
12664621a4
1339640828
142311dda4
151582c44a
hexdf3048c

234030220 has 24 divisors (see below), whose sum is σ = 517330800. Its totient is φ = 88684992.

The previous prime is 234030197. The next prime is 234030227. The reversal of 234030220 is 22030432.

It is a junction number, because it is equal to n+sod(n) for n = 234030194 and 234030203.

It is not an unprimeable number, because it can be changed into a prime (234030227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307555 + ... + 308314.

It is an arithmetic number, because the mean of its divisors is an integer number (21555450).

Almost surely, 2234030220 is an apocalyptic number.

234030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234030220 is an abundant number, since it is smaller than the sum of its proper divisors (283300580).

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

234030220 is a wasteful number, since it uses less digits than its factorization.

234030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615897 (or 615895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 234030220 is about 15298.0462804895. The cubic root of 234030220 is about 616.2505411113.

Adding to 234030220 its reverse (22030432), we get a palindrome (256060652).

The spelling of 234030220 in words is "two hundred thirty-four million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 615869 1231738 2463476 3079345 6158690 11701511 12317380 23403022 46806044 58507555 117015110 234030220