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42285065 = 519742929
BaseRepresentation
bin1010000101001…
…1100000001001
32221120022012112
42201103200021
541311110230
64110152105
71022263034
oct241234011
987508175
1042285065
1121961439
12121b2635
1389b6964
14588a01b
153aa3d95
hex2853809

42285065 has 8 divisors (see below), whose sum is σ = 51000840. Its totient is φ = 33655552.

The previous prime is 42285059. The next prime is 42285083. The reversal of 42285065 is 56058224.

It can be written as a sum of positive squares in 4 ways, for example, as 2808976 + 39476089 = 1676^2 + 6283^2 .

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-42285065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20480 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (6375105).

Almost surely, 242285065 is an apocalyptic number.

It is an amenable number.

42285065 is a deficient number, since it is larger than the sum of its proper divisors (8715775).

42285065 is a wasteful number, since it uses less digits than its factorization.

42285065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43131.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 42285065 is about 6502.6967482730. The cubic root of 42285065 is about 348.3873153876.

The spelling of 42285065 in words is "forty-two million, two hundred eighty-five thousand, sixty-five".

Divisors: 1 5 197 985 42929 214645 8457013 42285065