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10997463761 = 17646909633
BaseRepresentation
bin10100011110111111…
…11111101011010001
31001101102200001011122
422033133333223101
5140010322320021
65015133452025
7536345620364
oct121737775321
931342601148
1010997463761
114733866329
12216b041015
13106354a10b
147648100db
1544573cbab
hex28f7ffad1

10997463761 has 4 divisors (see below), whose sum is σ = 11644373412. Its totient is φ = 10350554112.

The previous prime is 10997463709. The next prime is 10997463773. The reversal of 10997463761 is 16736479901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16736479901 = 82120385481.

It can be written as a sum of positive squares in 2 ways, for example, as 4705960000 + 6291503761 = 68600^2 + 79319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10997463761 is a prime.

It is a super-3 number, since 3×109974637613 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10997462761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323454800 + ... + 323454833.

It is an arithmetic number, because the mean of its divisors is an integer number (2911093353).

Almost surely, 210997463761 is an apocalyptic number.

It is an amenable number.

10997463761 is a deficient number, since it is larger than the sum of its proper divisors (646909651).

10997463761 is an equidigital number, since it uses as much as digits as its factorization.

10997463761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646909650.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 10997463761 in words is "ten billion, nine hundred ninety-seven million, four hundred sixty-three thousand, seven hundred sixty-one".

Divisors: 1 17 646909633 10997463761