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42982801 = 411048361
BaseRepresentation
bin1010001111110…
…1110110010001
32222212202022121
42203331312101
542000422201
64133134241
71031230201
oct243756621
988782277
1042982801
1122298684
121248a381
138b9c414
1459cc401
153b909a1
hex28fdd91

42982801 has 4 divisors (see below), whose sum is σ = 44031204. Its totient is φ = 41934400.

The previous prime is 42982799. The next prime is 42982811. The reversal of 42982801 is 10828924.

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 22043025 + 20939776 = 4695^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 42982801 - 21 = 42982799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42982811) 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, 524140 + ... + 524221.

It is an arithmetic number, because the mean of its divisors is an integer number (11007801).

Almost surely, 242982801 is an apocalyptic number.

42982801 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42982801 is a deficient number, since it is larger than the sum of its proper divisors (1048403).

42982801 is a wasteful number, since it uses less digits than its factorization.

42982801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048402.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 42982801 is about 6556.1269816867. The cubic root of 42982801 is about 350.2930905514.

The spelling of 42982801 in words is "forty-two million, nine hundred eighty-two thousand, eight hundred one".

Divisors: 1 41 1048361 42982801