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42215033 = 717893371
BaseRepresentation
bin1010000100001…
…0011001111001
32221102202010202
42201002121321
541301340113
64104451545
71021551620
oct241023171
987382122
1042215033
1121913863
1212179bb5
138990b13
14586c6b7
153a8d258
hex2842679

42215033 has 8 divisors (see below), whose sum is σ = 48287040. Its totient is φ = 36153360.

The previous prime is 42215027. The next prime is 42215057. The reversal of 42215033 is 33051224.

It is a happy number.

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 42215033 - 26 = 42214969 is a prime.

It is a super-2 number, since 2×422150332 = 3564218022382178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42214996 and 42215014.

It is not an unprimeable number, because it can be changed into a prime (42215003) 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, 10838 + ... + 14208.

It is an arithmetic number, because the mean of its divisors is an integer number (6035880).

Almost surely, 242215033 is an apocalyptic number.

It is an amenable number.

42215033 is a deficient number, since it is larger than the sum of its proper divisors (6072007).

42215033 is a wasteful number, since it uses less digits than its factorization.

42215033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42215033 is about 6497.3096740112. The cubic root of 42215033 is about 348.1948775277.

Adding to 42215033 its reverse (33051224), we get a palindrome (75266257).

The spelling of 42215033 in words is "forty-two million, two hundred fifteen thousand, thirty-three".

Divisors: 1 7 1789 3371 12523 23597 6030719 42215033