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42089215 = 571202549
BaseRepresentation
bin1010000010001…
…1101011111111
32221012100112211
42200203223333
541233323330
64102041251
71020516040
oct240435377
987170484
1042089215
1121838283
1212119227
13894877c
1458388c7
153a65d2a
hex2823aff

42089215 has 8 divisors (see below), whose sum is σ = 57722400. Its totient is φ = 28861152.

The previous prime is 42089213. The next prime is 42089219. The reversal of 42089215 is 51298024.

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 42089215 - 21 = 42089213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42089213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601240 + ... + 601309.

It is an arithmetic number, because the mean of its divisors is an integer number (7215300).

Almost surely, 242089215 is an apocalyptic number.

42089215 is a deficient number, since it is larger than the sum of its proper divisors (15633185).

42089215 is a wasteful number, since it uses less digits than its factorization.

42089215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202561.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 42089215 is about 6487.6201337625. The cubic root of 42089215 is about 347.8486124237.

The spelling of 42089215 in words is "forty-two million, eighty-nine thousand, two hundred fifteen".

Divisors: 1 5 7 35 1202549 6012745 8417843 42089215