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42849053 = 133296081
BaseRepresentation
bin1010001101110…
…1001100011101
32222121221211222
42203131030131
541432132203
64130223125
71030132232
oct243351435
988557758
1042849053
1122207145
1212424aa5
138b53590
145995789
153b66038
hex28dd31d

42849053 has 4 divisors (see below), whose sum is σ = 46145148. Its totient is φ = 39552960.

The previous prime is 42849049. The next prime is 42849067. The reversal of 42849053 is 35094824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3247204 + 39601849 = 1802^2 + 6293^2 .

It is a cyclic number.

It is not a de Polignac number, because 42849053 - 22 = 42849049 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 (42849013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648028 + ... + 1648053.

It is an arithmetic number, because the mean of its divisors is an integer number (11536287).

Almost surely, 242849053 is an apocalyptic number.

It is an amenable number.

42849053 is a deficient number, since it is larger than the sum of its proper divisors (3296095).

42849053 is a wasteful number, since it uses less digits than its factorization.

42849053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296094.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 42849053 is about 6545.9188048738. The cubic root of 42849053 is about 349.9293816709.

The spelling of 42849053 in words is "forty-two million, eight hundred forty-nine thousand, fifty-three".

Divisors: 1 13 3296081 42849053