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10430728961 = 29359680309
BaseRepresentation
bin10011011011011100…
…00100101100000001
3222220221020221011212
421231232010230001
5132330231311321
64443010415505
7516324506342
oct115556045401
928827227155
1010430728961
114472969064
122031291595
13ca2cca793
1470d4460c9
15410ae155b
hex26db84b01

10430728961 has 4 divisors (see below), whose sum is σ = 10790409300. Its totient is φ = 10071048624.

The previous prime is 10430728951. The next prime is 10430728967. The reversal of 10430728961 is 16982703401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16982703401 = 17998982553.

It can be written as a sum of positive squares in 2 ways, for example, as 6643065025 + 3787663936 = 81505^2 + 61544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10430728961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10430728967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179840126 + ... + 179840183.

It is an arithmetic number, because the mean of its divisors is an integer number (2697602325).

Almost surely, 210430728961 is an apocalyptic number.

It is an amenable number.

10430728961 is a deficient number, since it is larger than the sum of its proper divisors (359680339).

10430728961 is an equidigital number, since it uses as much as digits as its factorization.

10430728961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359680338.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 10430728961 in words is "ten billion, four hundred thirty million, seven hundred twenty-eight thousand, nine hundred sixty-one".

Divisors: 1 29 359680309 10430728961