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42773025 = 3523118397
BaseRepresentation
bin1010001100101…
…0101000100001
32222111002120010
42203022220201
541422214100
64124435133
71026364461
oct243125041
988432503
1042773025
1122165009
12123a8aa9
138b27aa9
145975ba1
153b4d750
hex28caa21

42773025 has 24 divisors (see below), whose sum is σ = 73003264. Its totient is φ = 22075200.

The previous prime is 42773011. The next prime is 42773033. The reversal of 42773025 is 52037724.

It is not a de Polignac number, because 42773025 - 27 = 42772897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42772983 and 42773001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6874 + ... + 11523.

Almost surely, 242773025 is an apocalyptic number.

It is an amenable number.

42773025 is a deficient number, since it is larger than the sum of its proper divisors (30230239).

42773025 is a wasteful number, since it uses less digits than its factorization.

42773025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441 (or 18436 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 42773025 is about 6540.1089440467. The cubic root of 42773025 is about 349.7222967248.

The spelling of 42773025 in words is "forty-two million, seven hundred seventy-three thousand, twenty-five".

Divisors: 1 3 5 15 25 31 75 93 155 465 775 2325 18397 55191 91985 275955 459925 570307 1379775 1710921 2851535 8554605 14257675 42773025