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423280230 = 235291074547
BaseRepresentation
bin11001001110101…
…011111001100110
31002111110212022120
4121032223321212
51331324431410
6110000210410
713326552102
oct3116537146
91074425276
10423280230
111a7a2677a
12b9909a06
1369902a99
1440304902
1527261570
hex193abe66

423280230 has 64 divisors (see below), whose sum is σ = 1060957440. Its totient is φ = 107940224.

The previous prime is 423280223. The next prime is 423280267. The reversal of 423280230 is 32082324.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423280230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90817 + ... + 95363.

It is an arithmetic number, because the mean of its divisors is an integer number (16577460).

Almost surely, 2423280230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423280230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530478720).

423280230 is an abundant number, since it is smaller than the sum of its proper divisors (637677210).

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

423280230 is a wasteful number, since it uses less digits than its factorization.

423280230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 423280230 is about 20573.7752976939. The cubic root of 423280230 is about 750.8318060128.

The spelling of 423280230 in words is "four hundred twenty-three million, two hundred eighty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 107 145 174 214 290 321 435 535 642 870 1070 1605 3103 3210 4547 6206 9094 9309 13641 15515 18618 22735 27282 31030 45470 46545 68205 93090 131863 136410 263726 395589 486529 659315 791178 973058 1318630 1459587 1977945 2432645 2919174 3955890 4865290 7297935 14109341 14595870 28218682 42328023 70546705 84656046 141093410 211640115 423280230