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42323223 = 343794153
BaseRepresentation
bin1010000101110…
…0110100010111
32221122020112210
42201130310113
541313320343
64111044503
71022512215
oct241346427
987566483
1042323223
1121988078
1212210733
1389cb137
145899cb5
153ab0333
hex285cd17

42323223 has 16 divisors (see below), whose sum is σ = 58488320. Its totient is φ = 27203904.

The previous prime is 42323221. The next prime is 42323231. The reversal of 42323223 is 32232324.

42323223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42323223 - 21 = 42323221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42323223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42323221) 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 15 ways as a sum of consecutive naturals, for example, 8115 + ... + 12267.

It is an arithmetic number, because the mean of its divisors is an integer number (3655520).

Almost surely, 242323223 is an apocalyptic number.

42323223 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42323223 is a deficient number, since it is larger than the sum of its proper divisors (16165097).

42323223 is a wasteful number, since it uses less digits than its factorization.

42323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278.

The product of its digits is 1728, while the sum is 21.

The square root of 42323223 is about 6505.6301001517. The cubic root of 42323223 is about 348.4920786685.

Adding to 42323223 its reverse (32232324), we get a palindrome (74555547).

The spelling of 42323223 in words is "forty-two million, three hundred twenty-three thousand, two hundred twenty-three".

Divisors: 1 3 43 79 129 237 3397 4153 10191 12459 178579 328087 535737 984261 14107741 42323223