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4287393 = 3211231127
BaseRepresentation
bin10000010110101110100001
322001211012100
4100112232201
52044144033
6231521013
751304455
oct20265641
98054170
104287393
112469200
121529169
13b71626
147d8665
1559a513
hex416ba1

4287393 has 36 divisors (see below), whose sum is σ = 7081984. Its totient is φ = 2494800.

The previous prime is 4287379. The next prime is 4287403. The reversal of 4287393 is 3937824.

It is not a de Polignac number, because 4287393 - 28 = 4287137 is a prime.

It is a Duffinian number.

4287393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4287313) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33696 + ... + 33822.

Almost surely, 24287393 is an apocalyptic number.

It is an amenable number.

4287393 is a deficient number, since it is larger than the sum of its proper divisors (2794591).

4287393 is a wasteful number, since it uses less digits than its factorization.

4287393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 172 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 4287393 is about 2070.6020863507. The cubic root of 4287393 is about 162.4542577366.

The spelling of 4287393 in words is "four million, two hundred eighty-seven thousand, three hundred ninety-three".

Divisors: 1 3 9 11 31 33 93 99 121 127 279 341 363 381 1023 1089 1143 1397 3069 3751 3937 4191 11253 11811 12573 15367 33759 35433 43307 46101 129921 138303 389763 476377 1429131 4287393