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42182801 is a prime number
BaseRepresentation
bin1010000011101…
…0100010010001
32221101002220222
42200322202101
541244322201
64104042425
71021355633
oct240724221
987332828
1042182801
11218a1621
1212163415
13897c24b
145860a53
153a8391b
hex283a891

42182801 has 2 divisors, whose sum is σ = 42182802. Its totient is φ = 42182800.

The previous prime is 42182779. The next prime is 42182807. The reversal of 42182801 is 10828124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40972801 + 1210000 = 6401^2 + 1100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42182801 is a prime.

It is not a weakly prime, because it can be changed into another prime (42182807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21091400 + 21091401.

It is an arithmetic number, because the mean of its divisors is an integer number (21091401).

Almost surely, 242182801 is an apocalyptic number.

It is an amenable number.

42182801 is a deficient number, since it is larger than the sum of its proper divisors (1).

42182801 is an equidigital number, since it uses as much as digits as its factorization.

42182801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 42182801 is about 6494.8287891214. The cubic root of 42182801 is about 348.1062371072.

The spelling of 42182801 in words is "forty-two million, one hundred eighty-two thousand, eight hundred one".