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42856801 = 138339719
BaseRepresentation
bin1010001101111…
…1000101100001
32222122100110221
42203133011201
541432404201
64130323041
71030163641
oct243370541
988570427
1042856801
1122211a49
1212429481
138b56c70
145998521
153b684a1
hex28df161

42856801 has 8 divisors (see below), whose sum is σ = 46710720. Its totient is φ = 39082512.

The previous prime is 42856777. The next prime is 42856819. The reversal of 42856801 is 10865824.

42856801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42856801 - 25 = 42856769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42856871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18781 + ... + 20938.

It is an arithmetic number, because the mean of its divisors is an integer number (5838840).

Almost surely, 242856801 is an apocalyptic number.

It is an amenable number.

42856801 is a deficient number, since it is larger than the sum of its proper divisors (3853919).

42856801 is a wasteful number, since it uses less digits than its factorization.

42856801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39815.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 42856801 is about 6546.5105972571. The cubic root of 42856801 is about 349.9504719032.

The spelling of 42856801 in words is "forty-two million, eight hundred fifty-six thousand, eight hundred one".

Divisors: 1 13 83 1079 39719 516347 3296677 42856801