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42268293 = 3219247183
BaseRepresentation
bin1010000100111…
…1011010000101
32221112110012100
42201033122011
541310041133
64105542313
71022163114
oct241173205
987473170
1042268293
112194a881
12121a4999
1389ac132
145883c7b
153a9de13
hex284f685

42268293 has 12 divisors (see below), whose sum is σ = 64267840. Its totient is φ = 26695656.

The previous prime is 42268279. The next prime is 42268309. The reversal of 42268293 is 39286224.

It is not a de Polignac number, because 42268293 - 24 = 42268277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42268693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123421 + ... + 123762.

Almost surely, 242268293 is an apocalyptic number.

It is an amenable number.

42268293 is a deficient number, since it is larger than the sum of its proper divisors (21999547).

42268293 is a wasteful number, since it uses less digits than its factorization.

42268293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247208 (or 247205 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 42268293 is about 6501.4070015651. The cubic root of 42268293 is about 348.3412477057.

The spelling of 42268293 in words is "forty-two million, two hundred sixty-eight thousand, two hundred ninety-three".

Divisors: 1 3 9 19 57 171 247183 741549 2224647 4696477 14089431 42268293