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1284121301 is a prime number
BaseRepresentation
bin100110010001010…
…0010001011010101
310022111022010021012
41030202202023111
510112213340201
6331231102005
743551564611
oct11442421325
93274263235
101284121301
115a9942381
122ba071905
131760686b8
14c278a341
1577b055bb
hex4c8a22d5

1284121301 has 2 divisors, whose sum is σ = 1284121302. Its totient is φ = 1284121300.

The previous prime is 1284121249. The next prime is 1284121351. The reversal of 1284121301 is 1031214821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936298801 + 347822500 = 30599^2 + 18650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284121301 - 226 = 1217012437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284121351) 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, 642060650 + 642060651.

It is an arithmetic number, because the mean of its divisors is an integer number (642060651).

Almost surely, 21284121301 is an apocalyptic number.

It is an amenable number.

1284121301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284121301 is an equidigital number, since it uses as much as digits as its factorization.

1284121301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1284121301 is about 35834.6382847658. The cubic root of 1284121301 is about 1086.9311036205.

The spelling of 1284121301 in words is "one billion, two hundred eighty-four million, one hundred twenty-one thousand, three hundred one".