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2690115469 is a prime number
BaseRepresentation
bin1010000001010111…
…1110011110001101
320221110221000200021
42200111332132031
521002132143334
61122534302141
7123443414146
oct24025763615
96843830607
102690115469
111160555628
12630ab7951
1333b435602
141b73bcacd
1510b2813b4
hexa057e78d

2690115469 has 2 divisors, whose sum is σ = 2690115470. Its totient is φ = 2690115468.

The previous prime is 2690115409. The next prime is 2690115473. The reversal of 2690115469 is 9645110962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1441341225 + 1248774244 = 37965^2 + 35338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690115469 - 29 = 2690114957 is a prime.

It is a super-2 number, since 2×26901154692 = 14473442473106179922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690115409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345057734 + 1345057735.

It is an arithmetic number, because the mean of its divisors is an integer number (1345057735).

Almost surely, 22690115469 is an apocalyptic number.

It is an amenable number.

2690115469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690115469 is an equidigital number, since it uses as much as digits as its factorization.

2690115469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2690115469 is about 51866.3230719125. The cubic root of 2690115469 is about 1390.7753156129.

The spelling of 2690115469 in words is "two billion, six hundred ninety million, one hundred fifteen thousand, four hundred sixty-nine".