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12698061441 = 313433751943
BaseRepresentation
bin10111101001101110…
…10000101010000001
31012202221122100121220
423310313100222001
5202001200431231
65500003305253
7626445512202
oct136467205201
935687570556
1012698061441
1154267a755a
12256467b229
131274975730
1488660d5a9
154e4bad896
hex2f4dd0a81

12698061441 has 16 divisors (see below), whose sum is σ = 18275246976. Its totient is φ = 7796134656.

The previous prime is 12698061419. The next prime is 12698061443. The reversal of 12698061441 is 14416089621.

It is not a de Polignac number, because 12698061441 - 26 = 12698061377 is a prime.

It is a super-2 number, since 2×126980614412 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12698061393 and 12698061402.

It is not an unprimeable number, because it can be changed into a prime (12698061443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359085 + ... + 392858.

It is an arithmetic number, because the mean of its divisors is an integer number (1142202936).

Almost surely, 212698061441 is an apocalyptic number.

It is an amenable number.

12698061441 is a deficient number, since it is larger than the sum of its proper divisors (5577185535).

12698061441 is a wasteful number, since it uses less digits than its factorization.

12698061441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752392.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12698061441 in words is "twelve billion, six hundred ninety-eight million, sixty-one thousand, four hundred forty-one".

Divisors: 1 3 13 39 433 1299 5629 16887 751943 2255829 9775259 29325777 325591319 976773957 4232687147 12698061441