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42025151 = 77382241
BaseRepresentation
bin1010000001010…
…0000010111111
32221002002200002
42200110002333
541224301101
64100424515
71020131210
oct240240277
987062602
1042025151
11217a4133
12120a813b
13892556c
14581d407
153a51d6b
hex28140bf

42025151 has 8 divisors (see below), whose sum is σ = 48687264. Its totient is φ = 35527680.

The previous prime is 42025129. The next prime is 42025187. The reversal of 42025151 is 15152024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42025151 is a prime.

It is a super-2 number, since 2×420251512 = 3532226633145602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025111) 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, 40610 + ... + 41631.

It is an arithmetic number, because the mean of its divisors is an integer number (6085908).

Almost surely, 242025151 is an apocalyptic number.

42025151 is a deficient number, since it is larger than the sum of its proper divisors (6662113).

42025151 is an equidigital number, since it uses as much as digits as its factorization.

42025151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82321.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 42025151 is about 6482.6808497720. The cubic root of 42025151 is about 347.6720359972.

Adding to 42025151 its reverse (15152024), we get a palindrome (57177175).

The spelling of 42025151 in words is "forty-two million, twenty-five thousand, one hundred fifty-one".

Divisors: 1 7 73 511 82241 575687 6003593 42025151