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42144303 = 323610787
BaseRepresentation
bin1010000011000…
…1001000101111
32221022011010010
42200301020233
541242104203
64103144303
71021135455
oct240611057
987264103
1042144303
1121875703
1212145093
138967876
1458509d5
153a77303
hex283122f

42144303 has 8 divisors (see below), whose sum is σ = 58635648. Its totient is φ = 26874584.

The previous prime is 42144301. The next prime is 42144307. The reversal of 42144303 is 30344124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42144303 - 21 = 42144301 is a prime.

It is a super-2 number, since 2×421443032 = 3552284550711618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42144303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305325 + ... + 305462.

It is an arithmetic number, because the mean of its divisors is an integer number (7329456).

Almost surely, 242144303 is an apocalyptic number.

42144303 is a deficient number, since it is larger than the sum of its proper divisors (16491345).

42144303 is a wasteful number, since it uses less digits than its factorization.

42144303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610813.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42144303 is about 6491.8643701174. The cubic root of 42144303 is about 348.0003055223. Note that the first 3 decimals are identical.

Adding to 42144303 its reverse (30344124), we get a palindrome (72488427).

The spelling of 42144303 in words is "forty-two million, one hundred forty-four thousand, three hundred three".

Divisors: 1 3 23 69 610787 1832361 14048101 42144303