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42801097 is a prime number
BaseRepresentation
bin1010001101000…
…1011111001001
32222112112001211
42203101133021
541424113342
64125213121
71026542353
oct243213711
988475054
1042801097
1122184109
12124011a1
138b377c1
1459820d3
153b56c17
hex28d17c9

42801097 has 2 divisors, whose sum is σ = 42801098. Its totient is φ = 42801096.

The previous prime is 42801047. The next prime is 42801103. The reversal of 42801097 is 79010824.

42801097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24000201 + 18800896 = 4899^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 42801097 - 211 = 42799049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42801047) 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 as a sum of consecutive naturals, namely, 21400548 + 21400549.

It is an arithmetic number, because the mean of its divisors is an integer number (21400549).

Almost surely, 242801097 is an apocalyptic number.

It is an amenable number.

42801097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42801097 is an equidigital number, since it uses as much as digits as its factorization.

42801097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 42801097 is about 6542.2547336526. The cubic root of 42801097 is about 349.7987877482.

The spelling of 42801097 in words is "forty-two million, eight hundred one thousand, ninety-seven".