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42877807 = 721412861
BaseRepresentation
bin1010001110010…
…0001101101111
32222200102021221
42203210031233
541434042212
64131004211
71030312120
oct243441557
988612257
1042877807
1122226805
1212439667
138b636ab
1459a2047
153b6e807
hex28e436f

42877807 has 8 divisors (see below), whose sum is σ = 49043232. Its totient is φ = 36722400.

The previous prime is 42877801. The next prime is 42877811. The reversal of 42877807 is 70877824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42877807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42877801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13557 + ... + 16417.

It is an arithmetic number, because the mean of its divisors is an integer number (6130404).

Almost surely, 242877807 is an apocalyptic number.

42877807 is a deficient number, since it is larger than the sum of its proper divisors (6165425).

42877807 is a wasteful number, since it uses less digits than its factorization.

42877807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 42877807 is about 6548.1147668623. The cubic root of 42877807 is about 350.0076379286.

The spelling of 42877807 in words is "forty-two million, eight hundred seventy-seven thousand, eight hundred seven".

Divisors: 1 7 2141 2861 14987 20027 6125401 42877807