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3122770081 is a prime number
BaseRepresentation
bin1011101000100001…
…1011000010100001
322001122001011020011
42322020123002201
522343412120311
61233511444521
7140246051644
oct27210330241
98048034204
103122770081
1113627a4422
12731986741
133a9c6b262
14218a43a5b
15134245321
hexba21b0a1

3122770081 has 2 divisors, whose sum is σ = 3122770082. Its totient is φ = 3122770080.

The previous prime is 3122770033. The next prime is 3122770093. The reversal of 3122770081 is 1800772213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3120339600 + 2430481 = 55860^2 + 1559^2 .

It is an emirp because it is prime and its reverse (1800772213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3122770081 - 27 = 3122769953 is a prime.

It is a super-2 number, since 2×31227700812 = 19503385957577493122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3122770031) 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, 1561385040 + 1561385041.

It is an arithmetic number, because the mean of its divisors is an integer number (1561385041).

Almost surely, 23122770081 is an apocalyptic number.

It is an amenable number.

3122770081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122770081 is an equidigital number, since it uses as much as digits as its factorization.

3122770081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 3122770081 is about 55881.7508762923. The cubic root of 3122770081 is about 1461.6610358138.

The spelling of 3122770081 in words is "three billion, one hundred twenty-two million, seven hundred seventy thousand, eighty-one".