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42230287 = 114193637
BaseRepresentation
bin1010000100011…
…0001000001111
32221110112001201
42201012020033
541302332122
64105050331
71021644241
oct241061017
987415051
1042230287
1121924270
12121869a7
138997a48
145874091
153a92a27
hex284620f

42230287 has 8 divisors (see below), whose sum is σ = 47193552. Its totient is φ = 37454400.

The previous prime is 42230269. The next prime is 42230297. The reversal of 42230287 is 78203224.

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-42230287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230207) 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, 46368 + ... + 47269.

It is an arithmetic number, because the mean of its divisors is an integer number (5899194).

Almost surely, 242230287 is an apocalyptic number.

42230287 is a deficient number, since it is larger than the sum of its proper divisors (4963265).

42230287 is a wasteful number, since it uses less digits than its factorization.

42230287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93689.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 42230287 is about 6498.4834384647. The cubic root of 42230287 is about 348.2368114446.

The spelling of 42230287 in words is "forty-two million, two hundred thirty thousand, two hundred eighty-seven".

Divisors: 1 11 41 451 93637 1030007 3839117 42230287