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42257033 = 7134211103
BaseRepresentation
bin1010000100110…
…0101010001001
32221111212202022
42201030222021
541304211113
64105414225
71022115230
oct241145211
987455668
1042257033
1121942375
121219a375
1389a6c80
14587db17
153a9a908
hex284ca89

42257033 has 16 divisors (see below), whose sum is σ = 52179456. Its totient is φ = 33324480.

The previous prime is 42257029. The next prime is 42257041. The reversal of 42257033 is 33075224.

It is not a de Polignac number, because 42257033 - 22 = 42257029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42256993 and 42257011.

It is not an unprimeable number, because it can be changed into a prime (42257093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37760 + ... + 38862.

It is an arithmetic number, because the mean of its divisors is an integer number (3261216).

Almost surely, 242257033 is an apocalyptic number.

It is an amenable number.

42257033 is a deficient number, since it is larger than the sum of its proper divisors (9922423).

42257033 is a wasteful number, since it uses less digits than its factorization.

42257033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 42257033 is about 6500.5409774880. The cubic root of 42257033 is about 348.3103130065.

The spelling of 42257033 in words is "forty-two million, two hundred fifty-seven thousand, thirty-three".

Divisors: 1 7 13 91 421 1103 2947 5473 7721 14339 38311 100373 464363 3250541 6036719 42257033