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3097812965 = 51347658661
BaseRepresentation
bin1011100010100100…
…1101111111100101
321222220002012111112
42320221031333211
522321020003330
61231220514405
7136523655452
oct27051157745
97886065445
103097812965
11134a6a8805
1272554ba05
133a4a40730
142155c8829
15131e65795
hexb8a4dfe5

3097812965 has 8 divisors (see below), whose sum is σ = 4003327608. Its totient is φ = 2287615680.

The previous prime is 3097812941. The next prime is 3097812989. The reversal of 3097812965 is 5692187903.

It is a Cunningham number, because it is equal to 556582+1.

It is an interprime number because it is at equal distance from previous prime (3097812941) and next prime (3097812989).

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 3097812964 = 1^2 + 55658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3097812965 - 218 = 3097550821 is a prime.

It is a super-2 number, since 2×30978129652 = 19192890332244182450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23829266 + ... + 23829395.

It is an arithmetic number, because the mean of its divisors is an integer number (500415951).

Almost surely, 23097812965 is an apocalyptic number.

It is an amenable number.

3097812965 is a deficient number, since it is larger than the sum of its proper divisors (905514643).

3097812965 is a wasteful number, since it uses less digits than its factorization.

3097812965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47658679.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 3097812965 is about 55658.0000089834. Note that the first 5 decimals coincide. The cubic root of 3097812965 is about 1457.7567610556.

The spelling of 3097812965 in words is "three billion, ninety-seven million, eight hundred twelve thousand, nine hundred sixty-five".

Divisors: 1 5 13 65 47658661 238293305 619562593 3097812965