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10663258849 = 292861128521
BaseRepresentation
bin10011110111001010…
…00110101011100001
31000112010210200012221
421323211012223201
5133314243240344
64522034351041
7525150130135
oct117345065341
930463720187
1010663258849
11458214a221
12209712b481
13100c234429
147322953c5
15426224184
hex27b946ae1

10663258849 has 8 divisors (see below), whose sum is σ = 11034898920. Its totient is φ = 10291881600.

The previous prime is 10663258841. The next prime is 10663258871. The reversal of 10663258849 is 94885236601.

It can be written as a sum of positive squares in 4 ways, for example, as 2195578449 + 8467680400 = 46857^2 + 92020^2 .

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 10663258849 - 23 = 10663258841 is a prime.

It is a super-2 number, since 2×106632588492 (a number of 21 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 = 10663258796 and 10663258805.

It is not an unprimeable number, because it can be changed into a prime (10663258841) 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, 18709 + ... + 147229.

It is an arithmetic number, because the mean of its divisors is an integer number (1379362365).

Almost surely, 210663258849 is an apocalyptic number.

It is an amenable number.

10663258849 is a deficient number, since it is larger than the sum of its proper divisors (371640071).

10663258849 is a wasteful number, since it uses less digits than its factorization.

10663258849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131411.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 10663258849 in words is "ten billion, six hundred sixty-three million, two hundred fifty-eight thousand, eight hundred forty-nine".

Divisors: 1 29 2861 82969 128521 3727109 367698581 10663258849