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97919226869 = 2129379712113
BaseRepresentation
bin101101100110001110…
…0001101001111110101
3100100202011022010010012
41123030130031033311
53101014310224434
6112552232510005
710034346460352
oct1331434151765
9310664263105
1097919226869
113858893a492
1216b88b4b305
1393066c4139
144a4c97b629
15283171e3ce
hex16cc70d3f5

97919226869 has 8 divisors (see below), whose sum is σ = 97999110360. Its totient is φ = 97839379456.

The previous prime is 97919226829. The next prime is 97919226877. The reversal of 97919226869 is 96862291979.

It can be written as a sum of positive squares in 4 ways, for example, as 2839504369 + 95079722500 = 53287^2 + 308350^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 97919226869 - 224 = 97902449653 is a prime.

It is a super-2 number, since 2×979192268692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97919226799 and 97919226808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97919226829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8077757 + ... + 8089869.

It is an arithmetic number, because the mean of its divisors is an integer number (12249888795).

Almost surely, 297919226869 is an apocalyptic number.

It is an amenable number.

97919226869 is a deficient number, since it is larger than the sum of its proper divisors (79883491).

97919226869 is a wasteful number, since it uses less digits than its factorization.

97919226869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18039.

The product of its digits is 52907904, while the sum is 68.

The spelling of 97919226869 in words is "ninety-seven billion, nine hundred nineteen million, two hundred twenty-six thousand, eight hundred sixty-nine".

Divisors: 1 2129 3797 12113 8083813 25788577 45993061 97919226869