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42252351 = 3103136739
BaseRepresentation
bin1010000100101…
…1100000111111
32221111122022220
42201023200333
541304033401
64105340423
71022065461
oct241134077
987448286
1042252351
11219398a9
1212197713
1389a4abb
14587c131
153a99336
hex284b83f

42252351 has 8 divisors (see below), whose sum is σ = 56883840. Its totient is φ = 27894552.

The previous prime is 42252341. The next prime is 42252451. The reversal of 42252351 is 15325224.

42252351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42252351 - 217 = 42121279 is a prime.

It is a super-2 number, since 2×422523512 = 3570522330054402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252341) 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 7 ways as a sum of consecutive naturals, for example, 68061 + ... + 68678.

It is an arithmetic number, because the mean of its divisors is an integer number (7110480).

Almost surely, 242252351 is an apocalyptic number.

42252351 is a deficient number, since it is larger than the sum of its proper divisors (14631489).

42252351 is a wasteful number, since it uses less digits than its factorization.

42252351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136845.

The product of its digits is 2400, while the sum is 24.

The square root of 42252351 is about 6500.1808436381. The cubic root of 42252351 is about 348.2974484882.

Adding to 42252351 its reverse (15325224), we get a palindrome (57577575).

The spelling of 42252351 in words is "forty-two million, two hundred fifty-two thousand, three hundred fifty-one".

Divisors: 1 3 103 309 136739 410217 14084117 42252351