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3122746897 is a prime number
BaseRepresentation
bin1011101000100001…
…0101011000010001
322001121222222102111
42322020111120101
522343410400042
61233511145321
7140245624234
oct27210253021
98047888374
103122746897
111362788a66
12731975241
133a9c6083a
14218a3941b
1513423d517
hexba215611

3122746897 has 2 divisors, whose sum is σ = 3122746898. Its totient is φ = 3122746896.

The previous prime is 3122746859. The next prime is 3122746927. The reversal of 3122746897 is 7986472213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1590494161 + 1532252736 = 39881^2 + 39144^2 .

It is an emirp because it is prime and its reverse (7986472213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3122746897 - 231 = 975263249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3122746897.

It is not a weakly prime, because it can be changed into another prime (3122746397) 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, 1561373448 + 1561373449.

It is an arithmetic number, because the mean of its divisors is an integer number (1561373449).

Almost surely, 23122746897 is an apocalyptic number.

It is an amenable number.

3122746897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122746897 is an equidigital number, since it uses as much as digits as its factorization.

3122746897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 3122746897 is about 55881.5434378830. The cubic root of 3122746897 is about 1461.6574185944.

The spelling of 3122746897 in words is "three billion, one hundred twenty-two million, seven hundred forty-six thousand, eight hundred ninety-seven".