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42541297 = 307138571
BaseRepresentation
bin1010001001001…
…0000011110001
32222001022200121
42202102003301
541342310142
64115450241
71024411051
oct242220361
988038617
1042541297
11220169a7
12122b6981
138a76486
145915561
153b04c67
hex28920f1

42541297 has 4 divisors (see below), whose sum is σ = 42680176. Its totient is φ = 42402420.

The previous prime is 42541277. The next prime is 42541307. The reversal of 42541297 is 79214524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42541297 - 211 = 42539249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42541267) 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, 68979 + ... + 69592.

It is an arithmetic number, because the mean of its divisors is an integer number (10670044).

Almost surely, 242541297 is an apocalyptic number.

It is an amenable number.

42541297 is a deficient number, since it is larger than the sum of its proper divisors (138879).

42541297 is a wasteful number, since it uses less digits than its factorization.

42541297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138878.

The product of its digits is 20160, while the sum is 34.

The square root of 42541297 is about 6522.3689714704. The cubic root of 42541297 is about 349.0895985913.

The spelling of 42541297 in words is "forty-two million, five hundred forty-one thousand, two hundred ninety-seven".

Divisors: 1 307 138571 42541297