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230324420 = 22531371491
BaseRepresentation
bin11011011101001…
…11100011000100
3121001101200201002
431232213203010
5432430340140
634504352432
75464503524
oct1556474304
9531350632
10230324420
11109015167
1265175718
1338943b51
1422837684
1515349415
hexdba78c4

230324420 has 24 divisors (see below), whose sum is σ = 499285248. Its totient is φ = 89157600.

The previous prime is 230324411. The next prime is 230324431. The reversal of 230324420 is 24423032.

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

It is a junction number, because it is equal to n+sod(n) for n = 230324392 and 230324401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185126 + ... + 186365.

It is an arithmetic number, because the mean of its divisors is an integer number (20803552).

Almost surely, 2230324420 is an apocalyptic number.

230324420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230324420 is an abundant number, since it is smaller than the sum of its proper divisors (268960828).

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

230324420 is a wasteful number, since it uses less digits than its factorization.

230324420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371531 (or 371529 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 230324420 is about 15176.4429297514. The cubic root of 230324420 is about 612.9805042469.

Adding to 230324420 its reverse (24423032), we get a palindrome (254747452).

The spelling of 230324420 in words is "two hundred thirty million, three hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 371491 742982 1485964 1857455 3714910 7429820 11516221 23032442 46064884 57581105 115162210 230324420