Search a number
-
+
230421642 = 23113491237
BaseRepresentation
bin11011011101111…
…11010010001010
3121001120122001220
431232333102022
5432441443032
634510422510
75465360133
oct1556772212
9531518056
10230421642
11109081210
1265201a36
1338979189
1422860c8a
151536812c
hexdbbf48a

230421642 has 16 divisors (see below), whose sum is σ = 502738272. Its totient is φ = 69824720.

The previous prime is 230421629. The next prime is 230421647. The reversal of 230421642 is 246124032.

230421642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (230421647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1745553 + ... + 1745684.

It is an arithmetic number, because the mean of its divisors is an integer number (31421142).

Almost surely, 2230421642 is an apocalyptic number.

230421642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

230421642 is an abundant number, since it is smaller than the sum of its proper divisors (272316630).

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

230421642 is a wasteful number, since it uses less digits than its factorization.

230421642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491253.

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

The square root of 230421642 is about 15179.6456480380. The cubic root of 230421642 is about 613.0667403008.

Adding to 230421642 its reverse (246124032), we get a palindrome (476545674).

The spelling of 230421642 in words is "two hundred thirty million, four hundred twenty-one thousand, six hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 3491237 6982474 10473711 20947422 38403607 76807214 115210821 230421642