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9628942541 = 69971376153
BaseRepresentation
bin10001111011110111…
…00000000011001101
3220212001112221222112
420331323200003031
5124210002130131
64231245353405
7460420442531
oct107573400315
926761487875
109628942541
1140a1318059
121a48868865
13ba5b7074a
14674b73bc1
153b551502b
hex23dee00cd

9628942541 has 4 divisors (see below), whose sum is σ = 9630325692. Its totient is φ = 9627559392.

The previous prime is 9628942513. The next prime is 9628942549. The reversal of 9628942541 is 1452498269.

9628942541 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: 1452498269 = 6312301899.

It can be written as a sum of positive squares in 2 ways, for example, as 859369225 + 8769573316 = 29315^2 + 93646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9628942541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9628942541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9628942549) 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, 681080 + ... + 695073.

It is an arithmetic number, because the mean of its divisors is an integer number (2407581423).

Almost surely, 29628942541 is an apocalyptic number.

It is an amenable number.

9628942541 is a deficient number, since it is larger than the sum of its proper divisors (1383151).

9628942541 is a wasteful number, since it uses less digits than its factorization.

9628942541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383150.

The product of its digits is 1244160, while the sum is 50.

The square root of 9628942541 is about 98127.1753440401. The cubic root of 9628942541 is about 2127.4508316021.

The spelling of 9628942541 in words is "nine billion, six hundred twenty-eight million, nine hundred forty-two thousand, five hundred forty-one".

Divisors: 1 6997 1376153 9628942541