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9620949461 = 77801123661
BaseRepresentation
bin10001111010111010…
…00000100111010101
3220211111111212112112
420331131000213111
5124200430340321
64230402200405
7460262502224
oct107535004725
926744455475
109620949461
114097858802
121a46053105
13ba4302506
14673a92cbb
153b4986a5b
hex23d7409d5

9620949461 has 4 divisors (see below), whose sum is σ = 9621150924. Its totient is φ = 9620748000.

The previous prime is 9620949379. The next prime is 9620949467. The reversal of 9620949461 is 1649490269.

9620949461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1649490269 = 7235641467.

It can be written as a sum of positive squares in 2 ways, for example, as 2840250436 + 6780699025 = 53294^2 + 82345^2 .

It is a cyclic number.

It is not a de Polignac number, because 9620949461 - 230 = 8547207637 is a prime.

It is a super-2 number, since 2×96209494612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9620949467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15971 + ... + 139631.

It is an arithmetic number, because the mean of its divisors is an integer number (2405287731).

Almost surely, 29620949461 is an apocalyptic number.

It is an amenable number.

9620949461 is a deficient number, since it is larger than the sum of its proper divisors (201463).

9620949461 is a wasteful number, since it uses less digits than its factorization.

9620949461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201462.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 9620949461 is about 98086.4387211606. The cubic root of 9620949461 is about 2126.8619960126.

The spelling of 9620949461 in words is "nine billion, six hundred twenty million, nine hundred forty-nine thousand, four hundred sixty-one".

Divisors: 1 77801 123661 9620949461